The Big Bang Theory

The Lizard-Spock Expansion (Season 2, Episode 8)

TV-PG

TV Episode | 20 min | Comedy, Romance

Leonard and Howard's friendship is jeopardised when Leonard steals a girl from Howard.

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Cast	+ Add Cast
9 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)
Sara Rue Dr. Stephanie Barnett Dr. Stephanie Barnett See fewer	Pearl Harbor (2001)
Carol Ann Susi Debbie Wolowitz (voice) Debbie Wolowitz (voice) See fewer	Cats & Dogs (2001)
Jennifer Hale News Announcer (voice) News Announcer (voice) See fewer	Ratchet & Clank: Rift Apart (2021)
Robert Clotworthy Announcer (voice) Announcer (voice) See fewer	Red Notice (2021)