The Big Bang Theory

The Werewolf Transformation (Season 5, Episode 18)

TV-PG

TV Episode | 21 min | Comedy, Romance

Sheldon wreaks havoc when he tries to get a haircut from his regular barber, who is ill. Howard runs into a few problems with astronaut training.

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Cast	+ Add Cast
10 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)
Mayim Bialik Amy Farrah Fowler Amy Farrah Fowler See fewer	Beaches (1988)
Melissa Rauch Bernadette Rostenkowski Bernadette Rostenkowski See fewer	The Big Bang Theory (2007)
Carol Ann Susi Debbie Wolowitz (voice) Debbie Wolowitz (voice) See fewer	Cats & Dogs (2001)
Vernee Watson Althea Althea See fewer	Christmas with the Kranks (2004)
Peter Onorati Angelo Angelo See fewer	This Is Us (2016)