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)
John Carradine Arcon Arcon See fewer	The Grapes of Wrath (1940)
Jim Mills Saticon #1 Saticon #1 See fewer	Lost in Space (1965)
Judy the Chimpanzee Debbie the Bloop (uncredited) Debbie the Bloop (uncredited) See fewer	Jambo (1969)
John Hunt Saticon #2 (uncredited) Saticon #2 (uncredited) See fewer	Hawaii Five-O (1968)
Paul Kessler Saticon #3 (uncredited) Saticon #3 (uncredited) See fewer	Vegas Vacation (1997)
Bob May The Robot (uncredited) The Robot (uncredited) See fewer	The Red Skelton Hour (1951)
Harry Monty Monster Fly (uncredited) Monster Fly (uncredited) See fewer	The Lord of the Rings (1978)
Dick Tufeld The Robot (voice) (uncredited) The Robot (voice) (uncredited) See fewer	Lost in Space (1998)