Characters played by Richard Widmark
Capt. Eric Finlander U.S.N.
Characters played by Sidney Poitier
Ben Munceford
Characters played by James MacArthur
Ens. Ralston
Characters played by Martin Balsam
Lt. Cmdr. Chester Potter M.D.
U.S.N.
Characters played by Wally Cox
Seaman Merlin Queffle
Characters played by Eric Portman
Commodore Wolfgang Schrepke - Deutsche Marine
Characters played by Michael Kane
Cmdr. Allison - Executive Officer
Bridge
Characters played by Colin Maitland
Seaman Jones - Bridge
Characters played by Paul Tamarin
Seaman 2nd Class - Bridge
Characters played by Frank Lieberman
Seaman 1st Class - Bridge
Characters played by James Caffrey
Seaman 1st Class - Bridge
Characters played by Burnell Tucker
Seaman 1st Class - Bridge
Characters played by Mike Lennox
Lt. Krindlemeyer U.S.N. - Bridge
Characters played by Bill Edwards
Lieutenant Hazelwood U.S.N. - Bridge
Characters played by Stephen Schreiber
Seaman 2nd Class - Bridge
Characters played by Ronald Rubin
Seaman 1st Class - Bridge
Characters played by Eugene Leonard
Seaman 2nd Class - Bridge
Characters played by Gary Cockrell
Lieutenant Bascombe U.S.N. - C.I.C.
Characters played by Roy Stephens
Seaman 2nd Class - C.I.C.
Characters played by George Roubicek
Lieutenant Berger U.S.N. - C.I.C.
Characters played by John McCarthy
Seaman 1st Class - C.I.C.
Characters played by Shane Rimmer
Seaman 1st Class - C.I.C.
Characters played by Glenn Beck
Seaman 2nd Class - C.I.C.
Characters played by Brian Davies
Lieutenant Beckman U.S.N. - Communications
Characters played by Ed Bishop
Lieutenant Hacker U.S.N. - Communications
Characters played by Paul Carson
Seaman 1st Class - Communications
Characters played by Laurence Herder
Petty Officer - Communications
Characters played by Phil Brown
Chief Hospitalman Mckinley - Sick Bay
Characters played by Donald Sutherland
Hospitalman Nerney - Sick Bay
Characters played by Warren Stanhope
Hospitalman Strauss - Sick Bay
Characters played by Alan Gibbs
Seaman
Characters played by Charles Price
Seaman