EpisodeS4E2421 min2011-05-19

The Big Bang Theory

The Roommate Transmogrification

When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.

My Thoughts

Guest Stars

Special appearances in this episode.

Guest Stars

Alice Amter

Mrs. Koothrappali

Aarti Mann

Priya Koothrappali

Brian George

V.M. Koothrappali

Carol Ann Susi

Debbie Wolowitz (voice)

Crew

Episode-specific crew credits.

Mark Cendrowski

Director

Directing

Steven Molaro

Executive Producer

Production

Chuck Lorre

Story

Writing

Steven Molaro

Story

Writing

Jim Reynolds

Teleplay

Writing

Eric Kaplan

Teleplay

Writing

Nikki Lorre

Second Assistant Director

Directing

Bill Prady

Teleplay

Writing

Eddie Gorodetsky

Story

Writing

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