- Barry Sullivan
- Â Capt. David Scott 27 episodes, 1957-1958
- Nina Wilcox
- Â Anna Morrison 19 episodes, 1957-1958
- Mike Keene
- Â Cap'n Dan / ... 18 episodes, 1957-1958
- Paul Burke
- Â Jeff Kittredge / ... 16 episodes, 1957-1958
- Evan Elliott
- Â Danny / ... 16 episodes, 1957-1958
- Richard Kilbride
- Â Chief Miller / ... 4 episodes, 1957
- Arthur Storch
- Â Jeremiah / ... 2 episodes, 1957-1958
- Kevin Coughlin
- Â Bibber / ... 2 episodes, 1957
- Freeman Hammond
- Â Jim Perkins 2 episodes, 1957
- Luke Halpin
- Â Frankie / ... 2 episodes, 1958
- Shepperd Strudwick
- Â Michael Benson 1 episode, 1957
- William Smithers
- Â Chris 1 episode, 1958
- Suzanne Pleshette
- Â Barbara Benson 1 episode, 1957
- Martin Landau
- Â First Mate 1 episode, 1957
- Edmon Ryan
- Â Dr. Meeker 1 episode, 1957
- Miriam Goldina
- Â Angelina 1 episode, 1957
- David White
- Â Mike 1 episode, 1958
- Will Kuluva
- Â Ship's Captain 1 episode, 1957
- John Allen
- Â Billy Cameron 1 episode, 1957
- Kathleen Murray
- Â Jane Potter 1 episode, 1957
- Sam Raskyn
- Â De Carlo 1 episode, 1957
- Bruce Gordon
- Â Jorgensen 1 episode, 1957
- Hugh Reilly
- Â George Cameron 1 episode, 1957
- Marjorie Gateson
- Â Aunt Martha 1 episode, 1957
- Martin Ashe
- Â Munro 1 episode, 1957
- Ralph W. Chambers
- Â Mullens 1 episode, 1957
- Billy M. Greene
- Â Pliny Bartlett 1 episode, 1958
- Michael Conrad
- Â Man with Spear Gun 1 episode, 1957
- Joanna Roos
- Â Maggie 1 episode, 1957
- Sari Mordana
- Â Philomena 1 episode, 1957
- George Mitchell
- Â Jake 1 episode, 1958
- Joseph Sullivan
- Â John Hartnett 1 episode, 1958
- David J. Stewart
- Â Juan Garcia 1 episode, 1957
- Gene O'Donnell
- Â Lt. Carver 1 episode, 1957
- Coe Norton
- Â Patterson 1 episode, 1957
- F. Herrick Herrick
- Â Henry Ferguson 1 episode, 1957
- I.F. Parke
- Â Luke 1 episode, 1957
- Eugene Peterson
- Â Louie 1 episode, 1958
- Harry Holsten
- Â Harry Brooks 1 episode, 1958
- Robert Dryden
- Â Pete Giallella 1 episode, 1957
- James Bender
- Â Ramon Martinez 1 episode, 1957
- Joanna Vischer
- Â Louie's Wife 1 episode, 1958
- Margaret Burlen
- Â Sara Cross 1 episode, 1957
- Crahan Denton
- Â Constable 1 episode, 1958
- James Olson
- Â Charlie Potter 1 episode, 1957
- Grant Gordon
- Â State Trooper 1 episode, 1958
- Dorrit Kelton
- Â Old Woman 1 episode, 1958
- Anita Cooper
- Â Janet 1 episode, 1958
- Phyllis Hill
- Â Kay Wilson 1 episode, 1957
- Richard Coogan
- Â Harry Wilson 1 episode, 1957
- Mark Allen
- Â Heath 1 episode, 1957
- Jud Taylor
- Â Pete 1 episode, 1957
- Tom Clancy
- Â Barney 1 episode, 1957
- Michael Hogan
- Â MacDonald 1 episode, 1957
- Marnel Sumner
- Â Fred 1 episode, 1957
- Barbara Bain
- Â Jane 1 episode, 1958
- Larry Hagman
- Â Emerson 1 episode, 1958
- Murray Matheson
- Â Professor Wheeler 1 episode, 1958
- Rudy Bond
- Â Eben Purvis 1 episode, 1958
- Lonny Chapman
- Â Engineer 1 episode, 1958
- Fred Beir
- Â Fred Larson 1 episode, 1958
- Ruth McDevitt
- Â Mrs. Markham 1 episode, 1958
- Lew Gallo
- Â Lt. Comm. Nichols 1 episode, 1958
- Elaine Aiken
- Â Nan 1 episode, 1958
- James Congdon
- Â Robert Moore 1 episode, 1958
- William Post Jr.
- Â Comm. Gilmer 1 episode, 1958
- Frances Fuller
- Â Melinda 1 episode, 1958
- James Pritchett
- Â Harry Macklin 1 episode, 1958
- Richard Abbott
- Â Dr. Keller 1 episode, 1958
- Larry Weber
- Â Lee 1 episode, 1958
- Frank Tweddell
- Â Owens 1 episode, 1958
- Griff Evans
- Â Engineer 1 episode, 1958
- Arlene Kieta
- Â Kate 1 episode, 1958
- James C. Kelly
- Â Walters 1 episode, 1958
- Nina Morrison
- Â Anna Wilcox 1 episode, 1958
- Cameron Andrews
- Â Shadrach Collins 1 episode, 1958
- Chris Snell
- Â Frank Markham 1 episode, 1958
