Aaron Hendry
— Barry O'Brien
Michelle Beauchamp
— Susan O'Brien
Stuart Chapin
— Rick O'Brien
Vanessa Chapin
— Ellen O'Brien
Natalie Alexander
— Mrs. Carpenter
Gale Garnett
— Maureen Robinson
John Griffin
— John Robinson
Anthony De Longis
— Edward ("Woody") Wood
Timothy L. Trujillo
— Michael Rennie
Kyle Jordan
— Roj Blake