The Big Bang Theory The Killer Robot Instability (Season 2, Episode 12)
TV-PG
TV Episode | 21 min | Comedy, Romance

Primary photo for The Killer Robot Instability

The Big Bang Theory

The Killer Robot Instability (Season 2, Episode 12)

TV-PG

TV Episode | 21 min | Comedy, Romance

Howard becomes depressed after Penny makes a cruel statement about his love life, while the rest of the guys prepare for a grudge killer robot duel against an obnoxious colleague at the university.

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Cast	+ Add Cast
7 cast members

Name	Known for
Johnny Galecki Leonard Hofstadter Leonard Hofstadter See fewer	The Big Bang Theory (2007)
Jim Parsons Sheldon Cooper Sheldon Cooper See fewer	The Big Bang Theory (2007)
Kaley Cuoco Penny Penny See fewer	The Big Bang Theory (2007)
Simon Helberg Howard Wolowitz Howard Wolowitz See fewer	Florence Foster Jenkins (2016)
Kunal Nayyar Raj Koothrappali Raj Koothrappali See fewer	The Big Bang Theory (2007)
Carol Ann Susi Debbie Wolowitz (voice) Debbie Wolowitz (voice) See fewer	Cats & Dogs (2001)
John Ross Bowie Barry Kripke Barry Kripke See fewer	Speechless (2016)