Name	Known for
Guy Williams Dr. John Robinson Dr. John Robinson See fewer	Lost in Space (1965)
June Lockhart Maureen Robinson Maureen Robinson See fewer	Lost in Space (1965)
Mark Goddard Major Don West Major Don West See fewer	Lost in Space (1998)
Marta Kristen Judy Robinson Judy Robinson See fewer	Lost in Space (1965)
Bill Mumy Will Robinson (as Billy Mumy) Will Robinson (as Billy Mumy) See fewer	Babylon 5 (1993)
Angela Cartwright Penny Robinson Penny Robinson See fewer	The Sound of Music (1965)
Jonathan Harris Dr. Zachary Smith Dr. Zachary Smith See fewer	Lost in Space (1965)
Robert Foulk Cragmire Cragmire See fewer	The Maltese Falcon (1941)
Pitt Herbert Grover Grover See fewer	The Search for the Evil One (1967)
Claire Wilcox Stacy Stacy See fewer	Ben Casey (1961)
Norman Leavitt Charlie Charlie See fewer	Off Limits (1952)
Robert Pine Craig Craig See fewer	Lakeview Terrace (2008)
Bart La Rue Car Radio Announcer (uncredited) Car Radio Announcer (uncredited) See fewer	Satan War (1979)
Bob May The Robot (uncredited) The Robot (uncredited) See fewer	The Red Skelton Hour (1951)
Dick Tufeld The Robot (voice) (uncredited) The Robot (voice) (uncredited) See fewer	Lost in Space (1998)