Guest Star: Kevin Sussman

Kevin Sussman is an American actor best known for his recurring roles as Stuart on The Big Bang Theory and as Walter on Ugly Betty.

Kevin Sussman has been a recurring cast member during the sixth and eighth seasons of The Big Bang Theory. View his cast biography

You are viewing a list of Kevin Sussman's 71 appearances on The Big Bang Theory.

  • The Hofstadter Isotope

    The Hofstadter Isotope
    Season 2, Episode 20 - Aired April 13, 2009

    When the guys take Penny with them to the comic book store, she meets Stuart, who asks her out on a date.

    Appeared as Stuart

  • The Big Bang Theory

    The Classified Materials Turbulence
    Season 2, Episode 22 - Aired May 4, 2009

    As Stuart prepares to go on a second date with Penny, he reaches out to Leonard for advice.

    Appeared as Stuart

  • The Creepy Candy Coating Corollary

    The Creepy Candy Coating Corollary
    Season 3, Episode 5 - Aired October 19, 2009

    When Stuart hosts a Mystic Warlords of Ka'a tournament at the comic book store, Sheldon is determined to exact vengeance on Stuart's playing mate, Wil Wheaton.

    Appeared as Stuart

  • The Guitarist Amplification

    The Guitarist Amplification
    Season 3, Episode 7 - Aired November 9, 2009

    When Leonard and Penny's fighting upsets Sheldon, he finds shelter at Stuart's comic book store.

    Appeared as Stuart

  • The Excelsior Acquisition

    The Excelsior Acquisition
    Season 3, Episode 16 - Aired March 1, 2010

    Sheldon and the guys are excited to learn that Stuart has arranged for comic book legend Stan Lee to sign autographs at the store.

    Appeared as Stuart

  • The Wheaton Recurrence

    The Wheaton Recurrence
    Season 3, Episode 19 - Aired April 12, 2010

    When the guys take part in a bowling match against Stuart, his choice of teammate rankles Sheldon and has unexpected consequences for Leonard and Penny's relationship.

    Appeared as Stuart

  • The Desperation Emanation

    The Desperation Emanation
    Season 4, Episode 5 - Aired October 21, 2010

    As Leonard feels bad about being single, he finds out that not only do all his friends have girlfriends (or, in Sheldon's case, a girl who is a friend), but Stuart from the comic book store is also dating someone.

    Appeared as Stuart

  • The Justice League Recombination

    The Justice League Recombination
    Season 4, Episode 11 - Aired December 16, 2010

    When Stuart hosts a New Year's Eve costume party at the comic book store, the guys hope the addition of Penny and her boyfriend Zack will give their Justice League the chance to finally win.

    Appeared as Stuart

  • The Toast Derivation

    The Toast Derivation
    Season 4, Episode 17 - Aired February 24, 2011

    When Sheldon forms his own social group because his friends are hanging out at Raj and Priya's apartment, Stuart joins Sheldon's group for the evening - though he's more interested in getting a hot shower.

    Appeared as Stuart

  • The Russian Rocket Reaction

    The Russian Rocket Reaction
    Season 5, Episode 5 - Aired October 13, 2011

    When Leonard and Sheldon decide to start a fantasy sword collection with a Game of Thrones collectible, Leonard plays the bad cop as he haggles with Stuart.

    Appeared as Stuart

  • The Good Guy Fluctuation

    The Good Guy Fluctuation
    Season 5, Episode 7 - Aired October 27, 2011

    When Leonard chats with an attractive woman at the comic book store, Stuart offers to put Leonard's picture up on the Wall of Heroes.

    Appeared as Stuart

  • The Flaming Spittoon Acquisition

    The Flaming Spittoon Acquisition
    Season 5, Episode 10 - Aired November 17, 2011

    When Amy visits the comic book store with Sheldon, Stuart takes an interest in Amy and subsequently asks her out.

    Appeared as Stuart

  • The Friendship Contraction

    The Friendship Contraction
    Season 5, Episode 15 - Aired February 2, 2012

    After his friendship with Leonard breaks down, Sheldon asks his ninth favorite person Stuart to take him to the dentist.

    Appeared as Stuart

  • The Weekend Vortex

    The Weekend Vortex
    Season 5, Episode 19 - Aired March 8, 2012

    Ahead of attending the ninety-third birthday of Amy's aunt, Sheldon goes to Stuart's comic book store to try find her a gift.

    Appeared as Stuart

  • The Stag Convergence

    The Stag Convergence
    Season 5, Episode 22 - Aired April 26, 2012

    When Stuart attends Howard's bachelor party, he laments the state of his finances.

    Appeared as Stuart

  • The Deception Verification

    The Deception Verification
    Season 7, Episode 2 - Aired September 26, 2013

    Sheldon visits Stuart's comic book store to find a welcome home gift for Leonard, but ends up buying something for himself.

    Appeared as Stuart

  • The Scavenger Vortex

    The Scavenger Vortex
    Season 7, Episode 3 - Aired October 3, 2013

    When Raj throws a scavenger hunt for the gang, he uses Stuart's store for one of the clues but doesn't think to include him in the activities.

    Appeared as Stuart

  • The Raiders Minimization

    The Raiders Minimization
    Season 7, Episode 4 - Aired October 10, 2013

    After Raj and Stuart join an online dating website and don't receive any interest, they try to meet people in the real world.

    Appeared as Stuart

  • The Cooper Extraction

    The Cooper Extraction
    Season 7, Episode 11 - Aired December 12, 2013

    Stuart joins the gang as they decorate the Christmas tree and think about what life would be like without Sheldon in their lives.

    Appeared as Stuart

  • The Hesitation Ramification

    The Hesitation Ramification
    Season 7, Episode 12 - Aired January 2, 2014

    Stuart is Raj's guest when the gang gathers in the apartment to watch Penny's big break on NCIS.

    Appeared as Stuart

  • The Occupation Recalibration

    The Occupation Recalibration
    Season 7, Episode 13 - Aired January 9, 2014

    After Bernadette accidentally destroys one of Howard's comic books, she goes to Stuart's store to find a replacement.

    Appeared as Stuart

  • The Mommy Observation

    The Mommy Observation
    Season 7, Episode 18 - Aired March 13, 2014

    Stuart spends the evening playing dead when Raj surprises the gang with another one of his murder mystery dinners.

    Appeared as Stuart

  • The Status Quo Combustion

    The Status Quo Combustion
    Season 7, Episode 24 - Aired May 15, 2014

    Stuart is devastated when his comic book store burns to the ground.

    Appeared as Stuart

  • The Leftover Thermalization

    The Leftover Thermalization
    Season 8, Episode 18 - Aired March 12, 2015

    After the refrigerator in Mrs. Wolowitz's old house loses power, Stuart joins the gang to celebrate Mrs. Wolowitz's life with a dinner featuring the last food she prepared.

    Appeared as Stuart

  • The Maternal Combustion

    The Maternal Combustion
    Season 8, Episode 23 - Aired April 30, 2015

    Bernadette is fed up of cleaning up after Howard, Stuart and Raj.

    Appeared as Stuart

  • The Commitment Determination

    The Commitment Determination
    Season 8, Episode 24 - Aired May 7, 2015

    Howard and Bernadette try to find a way to ask Stuart to move out of their house.

    Appeared as Stuart

  • The Matrimonial Momentum

    The Matrimonial Momentum
    Season 9, Episode 1 - Aired September 21, 2015

    Living with Howard and Bernadette, Stuart is there when the gang gathers to watch Leonard and Penny's wedding streamed on the Internet.

    Appeared as Stuart

  • The 2003 Approximation

    The 2003 Approximation
    Season 9, Episode 4 - Aired October 12, 2015

    Stuart is looking for live music to attract people to the comic book store so Howard and Raj offer to perform.

    Appeared as Stuart

  • The Perspiration Implementation

    The Perspiration Implementation
    Season 9, Episode 5 - Aired October 19, 2015

    Penny, Amy and Bernadette try to help Stuart attract more female shoppers to his comic book store.

    Appeared as Stuart

  • The Helium Insufficiency

    The Helium Insufficiency
    Season 9, Episode 6 - Aired October 26, 2015

    Stuart's success with a new dating app inspires Penny and Bernadette to try help Amy meet somebody new.

    Appeared as Stuart

  • The Sales Call Sublimation

    The Sales Call Sublimation
    Season 9, Episode 12 - Aired January 7, 2016

    When Stuart finally moves out of Howard and Bernadette's house, they realize they miss him.

    Appeared as Stuart

  • The Empathy Optimization

    The Empathy Optimization
    Season 9, Episode 13 - Aired January 14, 2016

    Stuart feels left out when Sheldon reveals that the gang are planning a road trip to Vegas that doesn't include him.

    Appeared as Stuart

  • The Celebration Experimentation

    The Celebration Experimentation
    Season 9, Episode 17 - Aired February 25, 2016

    When Stuart attends Sheldon's birthday party, he feels overlooked by the rest of the group.

    Appeared as Stuart

  • The Viewing Party Combustion

    The Viewing Party Combustion
    Season 9, Episode 21 - Aired April 21, 2016

    When Stuart turns up at the Game of Thrones party in costume, he falls out with Howard who tricked him into thinking it was a dress up party.

    Appeared as Stuart

  • The Line Substitution Solution

    The Line Substitution Solution
    Season 9, Episode 23 - Aired May 5, 2016

    Sheldon hires Stuart to spend time with Amy when he'd rather wait in line at the movie theater.

    Appeared as Stuart

  • The Conjugal Conjecture

    The Conjugal Conjecture
    Season 10, Episode 1 - Aired September 19, 2016

    When Stuart attends Leonard and Penny's wedding ceremony, he finds himself sitting uncomfortably between Leonard's bickering parents.

    Appeared as Stuart

  • The Hot Tub Contamination

    The Hot Tub Contamination
    Season 10, Episode 5 - Aired October 17, 2016

    When Howard and Bernadette are supposed to be away, Stuart sneaks into their garden to use their hot tub, only for Raj to show up with the same idea.

    Appeared as Stuart

  • The Fetal Kick Catalyst

    The Fetal Kick Catalyst
    Season 10, Episode 6 - Aired October 27, 2016

    When Amy and Sheldon throw a dinner party, Stuart is one of the guests.

    Appeared as Stuart

  • The Property Division Collision

    The Property Division Collision
    Season 10, Episode 10 - Aired December 1, 2016

    Stuart and Raj fight over who is providing the most help to the expectant couple, Howard and Bernadette.

    Appeared as Stuart

  • The Birthday Synchronicity

    The Birthday Synchronicity
    Season 10, Episode 11 - Aired December 15, 2016

    Stuart joins Raj as they head to the hospital with the expectant couple, Howard and Bernadette, who is in labor.

    Appeared as Stuart

  • The Holiday Summation

    The Holiday Summation
    Season 10, Episode 12 - Aired January 5, 2017

    Stuart helps Howard and Bernadette carry their baby's things to Apartment 4A when the gang meet up after the holidays.

    Appeared as Stuart

  • The Locomotion Reverberation

    The Locomotion Reverberation
    Season 10, Episode 15 - Aired February 9, 2017

    Stuart and Raj look after Howard and Bernadette's baby, Halley, while Bernadette enjoys a girls' night out and Howard works with the guys.

    Appeared as Stuart

  • The Comic-Con Conundrum

    The Comic-Con Conundrum
    Season 10, Episode 17 - Aired February 23, 2017

    When Sheldon decides he still wants to go to Comic-Con even though his friends aren't going this year, Stuart offers to go with Sheldon.

    Appeared as Stuart

  • The Escape Hatch Identification

    The Escape Hatch Identification
    Season 10, Episode 18 - Aired March 9, 2017

    When Raj loses his apartment and needs a place to say, Stuart makes sure Raj doesn't ruin the good thing he has going with Howard and Bernadette.

    Appeared as Stuart

  • The Recollection Dissipation

    The Recollection Dissipation
    Season 10, Episode 20 - Aired April 6, 2017

    Bernadette confides in Stuart that she's feeling conflicted about returning to work and leaving Halley at home.

    Appeared as Stuart

  • The Separation Agitation

    The Separation Agitation
    Season 10, Episode 21 - Aired April 13, 2017

    Before Bernadette's maternity leave comes to an end, Howard, Stuart, Halley and Bernadette take a family trip to the zoo.

    Appeared as Stuart

  • The Long Distance Dissonance

    The Long Distance Dissonance
    Season 10, Episode 24 - Aired May 11, 2017

    When the guys want to find out whether Ramona is romantically interested in Sheldon or not, Stuart offers to ask her out.

    Appeared as Stuart

  • The Proposal Proposal

    The Proposal Proposal
    Season 11, Episode 1 - Aired September 25, 2017

    Stuart is happy to learn that Howard and Bernadette's big news does not involve him moving out of their house.

    Appeared as Stuart

  • The Relaxation Integration

    The Relaxation Integration
    Season 11, Episode 3 - Aired October 9, 2017

    Stuart and Raj both take an interest in Bernadette's new co-worker, Ruchi.

    Appeared as Stuart

  • The Geology Methodology

    The Geology Methodology
    Season 11, Episode 7 - Aired November 9, 2017

    Raj breaks the news to Stuart that he and Ruchi are going out on a date. Despite his attraction to Ruchi, Stuart is supportive of Raj - partly because he expects Raj will eventually screw things up.

    Appeared as Stuart

  • The Bitcoin Entanglement

    The Bitcoin Entanglement
    Season 11, Episode 9 - Aired November 30, 2017

    When they guys discuss their search for their previously forgotten crypto-currency fortune at the comic book store, Stuart tries to get in on the action.

    Appeared as Stuart

  • The Confidence Erosion

    The Confidence Erosion
    Season 11, Episode 10 - Aired December 7, 2017

    After falling out with Raj, Howard goes to comic book store alone and chats with Stuart.

    Appeared as Stuart

  • The Celebration Reverberation

    The Celebration Reverberation
    Season 11, Episode 11 - Aired December 14, 2017

    As Sheldon plans a birthday celebration for Amy, Howard is looking forward to Halley's first birthday. Meanwhile, Leonard has the holiday blues when he receives a Christmas letter from his brother detailing his many accomplishments.

    Appeared as Stuart

  • The Matrimonial Metric

    The Matrimonial Metric
    Season 11, Episode 12 - Aired January 4, 2018

    When Sheldon and Amy put their friends through a series of secret experiments to determine who should be their best man and maid of honor, Penny's true feelings about Amy are revealed.

    Appeared as Stuart

  • The Novelization Correlation

    The Novelization Correlation
    Season 11, Episode 15 - Aired February 1, 2018

    Hans the Janitor in Leonard's novel looks a lot like Stuart with a mustache.

    Appeared as Stuart

  • The Gates Excitation

    The Gates Excitation
    Season 11, Episode 18 - Aired March 29, 2018

    Penny gets the opportunity to host Bill Gates at work when his company wants to partner with her pharmaceutical company. Also, Leonard, Koothrappali and Wolowitz do everything in their power to meet him, while Sheldon thinks he is the victim of an April Fools prank.

    Appeared as Stuart

  • The Tenant Disassociation

    The Tenant Disassociation
    Season 11, Episode 19 - Aired April 5, 2018

    Stuart helps Raj and Howard locate the owner of the drone which crashed in his backyard.

    Appeared as Stuart

  • The Comet Polarization

    The Comet Polarization
    Season 11, Episode 21 - Aired April 19, 2018

    Stuart is delighted when comic book author Neil Gaiman gives his store a huge publicity boost.

    Appeared as Stuart

  • The Monetary Insufficiency

    The Monetary Insufficiency
    Season 11, Episode 22 - Aired April 26, 2018

    Needing cash to support his research, Sheldon turns to Stuart to try sell some of his prized comic books.

    Appeared as Stuart

  • The Bow Tie Asymmetry

    The Bow Tie Asymmetry
    Season 11, Episode 24 - Aired May 10, 2018

    When there's an impromptu Star Wars Q&A session at Sheldon and Amy's wedding, Stuart impresses his date, Denise.

    Appeared as Stuart

  • The Wedding Gift Wormhole

    The Wedding Gift Wormhole
    Season 12, Episode 2 - Aired September 27, 2018

    After they kissed at Sheldon and Amy's wedding, Stuart finally asks Denise out on a date.

    Appeared as Stuart

  • The Procreation Calculation

    The Procreation Calculation
    Season 12, Episode 3 - Aired October 4, 2018

    Howard and Bernadette are freaked out when Stuart and Denise get romantic in his bedroom.

    Appeared as Stuart

  • The Imitation Perturbation

    The Imitation Perturbation
    Season 12, Episode 6 - Aired October 25, 2018

    Stuart attends Leonard and Penny's Halloween party.

    Appeared as Stuart

  • The Consummation Deviation

    The Consummation Deviation
    Season 12, Episode 8 - Aired November 8, 2018

    When Sheldon takes Amy's father, Larry, to the comic book store, Howard catches his interest with his magic tricks.

    Appeared as Stuart

  • The Paintball Scattering

    The Paintball Scattering
    Season 12, Episode 11 - Aired January 3, 2019

    Stuart is flustered when Denise reveals she is looking for a roommate.

    Appeared as Stuart

  • The Meteorite Manifestation

    The Meteorite Manifestation
    Season 12, Episode 14 - Aired January 31, 2019

    When Stuart hears about Raj's plan to cut open a meteorite, he fears for planet Earth.

    Appeared as Stuart

  • The D & D Vortex

    The D & D Vortex
    Season 12, Episode 16 - Aired February 21, 2019

    When the guys learn that Stuart attends Wil Wheaton's celebrity D&D game, they pressure him to reveal how they can join the game.

    Appeared as Stuart

  • The Conference Valuation

    The Conference Valuation
    Season 12, Episode 17 - Aired March 7, 2019

    When Penny and Bernadette go to a pharmaceutical convention in San Diego, Howard is left in charge of the kids and allows Sheldon to perform experiments with them.

    Appeared as Stuart

  • The Laureate Accumulation

    The Laureate Accumulation
    Season 12, Episode 18 - Aired April 4, 2019

    Stuart helps Bernadette create a children's story book based on Howard's time as an astronaut.

    Appeared as Stuart

  • The Maternal Conclusion

    The Maternal Conclusion
    Season 12, Episode 22 - Aired May 9, 2019

    Denise and Stuart consider their options after Howard and Bernadette grow tired of them spending so much time at their house.

    Appeared as Stuart

  • The Stockholm Syndrome

    The Stockholm Syndrome
    Season 12, Episode 24 - Aired May 16, 2019

    When Howard and Bernadette travel to Stockholm, Stuart looks after Halley and Michael.

    Appeared as Stuart

Kevin Sussman has been a recurring cast member of The Big Bang Theory during the sixth and eighth seasons. The episodes for which he is credited as a cast member are not included on this list.

View Kevin Sussman's cast biography

 Search for Kevin Sussman on IMDB