The Killer Robot Instability

Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.

My Thoughts

Guest Stars

Special appearances in this episode.

Guest Stars

John Ross Bowie

Barry Kripke

Carol Ann Susi

Debbie Wolowitz (voice)

Crew

Episode-specific crew credits.

Mark Cendrowski

Director

Directing

Bill Prady

Story

Writing

Steven Molaro

Teleplay

Writing

Julie Fleischer

Script Supervisor

Directing

Richard A. Rosenstock

Story

Writing

Daley Haggar

Teleplay

Writing

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