Plot: The guys are concerned as Sheldon searches for an alternative to human companionship.
Cast
Johnny GaleckiLeonard Hofstadter
Johnny Galecki was
35 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Wed, Apr 30 1975
Jim ParsonsSheldon Cooper
Jim Parsons was
37 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Sat, Mar 24 1973
Kaley CuocoPenny
Kaley Cuoco was
24 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Sat, Nov 30 1985
Simon HelbergHoward Wolowitz
Simon Helberg was
29 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Tue, Dec 09 1980
Kunal NayyarRajesh Koothrappali
Kunal Nayyar was
29 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Thu, Apr 30 1981
Melissa RauchBernadette Rostenkowski
Melissa Rauch was
30 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Mon, Jun 23 1980
Mayim BialikAmy Farrah Fowler
Mayim Bialik was
34 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Fri, Dec 12 1975
Laurie MetcalfMary Cooper
Laurie Metcalf was
55 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Thu, Jun 16 1955
Crew
Mark CendrowskiDirector
Mark Cendrowski was
>> in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Unknown Birthday
Steven MolaroCo-Executive Producer, Teleplay
Steven Molaro was
>> in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Unknown Birthday
Chuck LorreStory
Chuck Lorre was
57 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Sat, Oct 18 1952
Lee AronsohnTeleplay
Lee Aronsohn was
57 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Mon, Dec 15 1952
Bill PradyStory
Bill Prady was
50 in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Tue, Jun 07 1960
Maria FerrariTeleplay
Maria Ferrari was
>> in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Unknown Birthday
Jim ReynoldsStory
Jim Reynolds was
>> in The Big Bang Theory - Season 4 - The Zazzy Substitution (Episode 3).
Unknown Birthday