Guest Star: Melissa Rauch
Melissa Rauch is an American actress and comedian best known for her role as Bernadette Rostenkowski on The Big Bang Theory.
Melissa Rauch joined the cast of The Big Bang Theory during its fourth season. This page only lists the episodes for which she was credited as a guest star.
You are viewing a list of Melissa Rauch's 10 appearances on The Big Bang Theory.
The Creepy Candy Coating Corollary
Season 3, Episode 5 - Aired October 19, 2009When Raj and Sheldon enter a Mystic Warlords of Ka'a tournament at Stuart's comic book store, Sheldon gets the opportunity to settle an old score with his nemesis, Star Trek: The Next Generation's Wil Wheaton. Meanwhile, Leonard regrets a pact he once made with Wolowitz when he must ask Penny to set him up with one of her friends.
Appeared as Bernadette
The Vengeance Formulation
Season 3, Episode 9 - Aired November 23, 2009When 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 Bernadette
The Gorilla Experiment
Season 3, Episode 10 - Aired December 7, 2009When Penny wants to learn more about Leonard's work, she turns to Sheldon for lessons. Sheldon views the opportunity to teach Penny rudimentary physics as an experiment, but his teaching style quickly brings Penny to tears. Meanwhile, Howard gets jealous after his girlfriend Bernadette also takes an interest in Leonard's research.
Appeared as Bernadette
The Psychic Vortex
Season 3, Episode 12 - Aired January 11, 2010Raj enlists Sheldon as his wingman when they attend a university mixer together. When Sheldon and Raj both meet girls at the party, Sheldon's "date" is in for a unique evening as he is oblivious to her advances. Meanwhile, on a double date with Howard and Bernadette, Leonard and Penny argue after he ridicules her belief in psychics.
Appeared as Bernadette
The Einstein Approximation
Season 3, Episode 14 - Aired February 1, 2010When Sheldon's struggle with a physics problem keeps him awake for days on end, he decides to free his mind by taking a menial job. After failing to find gainful employment anywhere else, Sheldon starts work at the Cheesecake Factory with Penny.
Appeared as Bernadette
The Hot Troll Deviation
Season 4, Episode 4 - Aired October 14, 2010Howard is embarrassed when the creepy reason behind his break-up with Bernadette is revealed. Meanwhile, a spat between Sheldon and Raj gets ugly as they engage in office warfare.
Appeared as Bernadette
The Desperation Emanation
Season 4, Episode 5 - Aired October 21, 2010When Leonard realizes he's the only one without a girlfriend, in a group that includes Sheldon, he asks Howard to set him up with one of Bernadette's friends. Meanwhile, Sheldon is trying to lose his "girlfriend", Amy Farrah Fowler, after he misunderstands her request for him to meet her mother.
Appeared as Bernadette
The 21-Second Excitation
Season 4, Episode 8 - Aired November 11, 2010The guys camp out to attend a screening of Raiders of the Lost Ark featuring 21 seconds of never-before-seen footage. When the guys find themselves at the back of the line, Sheldon is given another reason to hate his nemesis Wil Wheaton. Meanwhile, Penny's girl night with Bernadette turns into a slumber party when Amy invites herself along.
Appeared as Bernadette
The Boyfriend Complexity
Season 4, Episode 9 - Aired November 18, 2010Penny's dad is in town and Leonard is confused when Penny starts acting romantic with him. Penny asks Leonard to lie to her father and pretend they are still in a relationship. Meanwhile, Howard, Raj and Bernadette spend the night monitoring a telescope in the astrophysics lab, but the night takes an awkward turn when Raj starts drinking.
Appeared as Bernadette
The Alien Parasite Hypothesis
Season 4, Episode 10 - Aired December 9, 2010Amy is confused by an unusual sensation she felt in the presence of Penny's ex, Zack. With Sheldon's help, Amy realizes she was experiencing feelings of sexual arousal, so Sheldon sets out to help satisfy her needs. Meanwhile, Howard and Raj battle to find out who is the superhero and who is the sidekick in their friendship.
Appeared as Bernadette
Melissa Rauch joined The Big Bang Theory as a cast member during the show's fourth season. This list only contains the episodes in which she appeared as a guest star.