Larry Hagman
— Paul Damon
Martin Milner
— Maj. Hymie Stoddard
Jessica Walter
— Louise Damon
Barry Sullivan
— Hank Stoddard
Michael Learned
— Lee Jackson
Frank Sutton
— Bert Pearson
Will Geer
— Dr. McCutcheon
Barry Livingston
— Richie Damon
Patrick Duffy
— Jim
Ayn Ruymen
— Suzanne
Tracie Savage
— Liz Damon (as Tracy Savage)