Martin Milner

as Mel (archive footage)

as Self (archive footage)

as Detective Frank Halloran (1 episode)

as Self (1 episode)

as Captain Brian O'Neal

as Turk Donner (1 episode), as James MacGyver (1 episode)

as Sheriff Bodine (1 episode), as Clint Phelps (2 episodes), as Bill Maguire (1 episode), as Admiral Len Spalding (1 episode)

as Arthur Barnes (1 episode)

as Charlie Miller (1 episode)

as Self (1 episode)

as Peter Belton

as Sgt. Dabric (3 episodes)

as Philip Kent (2 episodes)

as Dr. Denvers

as Wilbur Folsom

as Lyle Kingman

as Tom Gray (5 episodes)

as Officer Pete Malloy

as Paul Burke

as Karl Robinson (20 episodes)

as Karl Robinson

as Maj. Hymie Stoddard

as John Shedd