Guest Star: John Ross Bowie

John Ross Bowie

John Ross Bowie is an American actor and comedian best known for playing Barry Kripke on The Big Bang Theory. He has made guest appearances on TV shows including Reno 911, Curb Your Enthusiasm, Melissa & Joey, Glee, and Godd Luck Charlie.

You are viewing a list of John Ross Bowie's 19 appearances on The Big Bang Theory.

  • The Killer Robot Instability

    Season 2, Episode 12 - The Killer Robot Instability
    Aired January 12, 2009

    When another one of Howard's unwanted advances on Penny leads her to spurn him, Howard falls into a depressed funk. Wolowitz's absence deprives the guys of their star engineer as they work on their robot for an upcoming killer robot contest.

    Appeared as Barry Kripke

  • The Friendship Algorithm

    Season 2, Episode 13 - The Friendship Algorithm
    Aired January 19, 2009

    Sheldon wants to use the university's grid computer for his research, but access to the computer is controlled by Barry Kripke who apparently favors his friends. Sheldon decides to befriend Kripke, but struggles from a lack of experience in making friends. Treating this like any other scientific inquiry, Sheldon studies up and develops a friendship algorithm.

    Appeared as Barry Kripke

  • The Electric Can Opener Fluctuation

    Season 3, Episode 1 - The Electric Can Opener Fluctuation
    Aired September 21, 2009

    After the gang return from their Arctic expedition, Sheldon is stunned to learn that the guys manipulated his data and invalidated his research. Fearing his scientific reputation has been ruined, Sheldon retreats to his mother's house in Texas. Meanwhile, Leonard catches up with Penny after his summer away, but just as it seems like a relationship is about to start, Leonard must fly to Texas to bring Sheldon home.

    Appeared as Barry Kripke

  • The Vengeance Formulation

    Season 3, Episode 9 - The Vengeance Formulation
    Aired November 23, 2009

    When Barry Kripke pulls a prank on Sheldon which embarrasses him on national radio, Sheldon vows revenge. Meanwhile, Howard tries to keep his new relationship with Bernadette going.

    Appeared as Barry Kripke

  • The Toast Derivation

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

    With Leonard and Priya now dating, the gang are spending more time at Priya's apartment. Sheldon is uncomfortable with this change but is powerless to stop it. After realizing Leonard is the center of their social group, not him, Sheldon sets out to find a new group of friends who will have fun his way. Meanwhile, Penny tries to move on after seeing Leonard in his new relationship.

    Appeared as Barry Kripke

  • The Beta Test Initiation

    Season 5, Episode 14 - The Beta Test Initiation
    Aired January 26, 2012

    Leonard and Penny develop a way to build a stronger relationship when they get back together. Meanwhile, Raj forms a strange relationship with a woman of sorts - his new phone's virtual assistant.

    Appeared as Barry Kripke

  • The Rothman Disintegration

    Season 5, Episode 17 - The Rothman Disintegration
    Aired February 16, 2012

    When an office at the University becomes available, Sheldon and his archnemesis, Barry Kripke, compete for it. Meanwhile, Amy gets Penny an extravagant gift that makes her feel uncomfortable.

    Appeared as Barry Kripke

  • The Stag Convergence

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

    Raj gets drunk at Howard's bachelor party and reveals a little too much about Howard's past sexual encounters. When Bernadette hears this in a video posted online, she reconsiders her engagement to Howard.

    Appeared as Barry Kripke

  • The Cooper/Kripke Inversion

    Season 6, Episode 14 - The Cooper/Kripke Inversion
    Aired January 31, 2013

    When Sheldon is forced to work with Barry Kripke, he is surprised to find his work is not at the same level as Barry's. Meanwhile, Howard and Raj spend $1,000 on action figures that of themselves, landing Howard in trouble with Bernadette.

    Appeared as Barry Kripke

  • The Tenure Turbulence

    Season 6, Episode 20 - The Tenure Turbulence
    Aired April 4, 2013

    When a tenured position opens up at the university, Leonard, Sheldon and Raj compete with Barry Kripke for the job. The competition intensifies when the girls get involved and fight for their guys.

    Appeared as Barry Kripke

  • The Discovery Dissipation

    Season 7, Episode 10 - The Discovery Dissipation
    Aired December 5, 2013

    When Sheldon's accidental science discovery is disproved by Leonard, he and Amy help Sheldon get over his shame. Meanwhile, Howard and Bernadette get some unwanted relationship advice from Raj, who's staying at their apartment for a week.

    Appeared as Barry Kripke

  • The Relationship Diremption

    Season 7, Episode 20 - The Relationship Diremption
    Aired April 10, 2014

    Sheldon is depressed by the state of his career after twenty fruitless years in the field of string theory. Meanwhile, when Howard and Bernadette go on a double date with Raj and Emily, Howard is embarassed to realize he hs already met Emily.

    Appeared as Barry Kripke

  • The Champagne Reflection

    Season 8, Episode 10 - The Champagne Reflection
    Aired November 20, 2014

    Leonard, Howard and Raj are forced to consider their own contribution to science as they clear out the office of a deceased professor. Meanwhile, Sheldon and Amy record the final episode of "Fun with Flags", and Bernadette is surprised to learn what her co-workers really think of her.

    Appeared as Barry Kripke

  • The Comic Book Store Regeneration

    Season 8, Episode 15 - The Comic Book Store Regeneration
    Aired February 19, 2015

    As they prepare for the reopening of Stuart's comic book store, the gang is at each other's throats. Sheldon is upset that Amy helped Barry Kripke with his work, so Penny tries to teach him how to let things go. When Sheldon reveals that Amy has been performing experiments on her, Penny struggles to follow her own advice. Howard is angry at Stuart over the furniture in his shop.

    When they go to collect food for the store's grand opening, Leonard and Raj think they spot Firefly star Nathan Fillion. Later, Howard receives some devastating news about his mother, and the gang rallies round him.

    Appeared as Barry Kripke

  • The Perspiration Implementation

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

    When the guys sign up for fencing class taught by Barry Kripke, Sheldon finds himself in an uncomfortable position after Kripke expresses an interest in Amy. Meanwhile, the girls try to help Stuart attract more female shoppers to his comic book store.

    Appeared as Barry Kripke

  • The Helium Insufficiency

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

    In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadette download a dating app on Amy's phone to try and find her a new man.

    Appeared as Barry Kripke

  • The Valentino Submergence

    Season 9, Episode 15 - The Valentino Submergence
    Aired February 11, 2016

    Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and the cute girl he met at the Comic Bookstore.

    Appeared as Barry Kripke

  • The Celebration Experimentation

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

    Barry attends Sheldon's birthday party and expresses an interest in Leonard's "cougar" mother.

    Appeared as Barry Kripke

  • The Geology Elevation

    Season 10, Episode 9 - The Geology Elevation
    Aired November 17, 2016

    Raj joins Howard as he takes his Stephen Hawking-inspired toy to Barry Kripke to see whether it's offensive or not.

    Appeared as Barry Kripke

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