Tony Randall as Fred Miller

Janet Leigh as Vivian Miller

Ken Berry as Mel Cheever

Roddy McDowall as Nate Ashbury

Charlotte Rae as Myrtle Ruth

Richard Dreyfuss as Harold Webster

Jim Backus as T.R. Hollister

Kay Cole as Lorrie Miller

Lou Wagner as Marvin Webster

Gary Tigerman as Tommie Miller

Arnold Stang as Jonah

Bruce Gordon as Adm. Sheridan

Lee Meredith as Dr. Wells

Harvey Lembeck as Sonarman

Frank Schuller as Alan Briggs

Henny Backus as Mrs. Webster

Bud Hoey as Mr. Webster

Pat Henning as Reilly

Jay Laskay as Philo

Charles G. Martin as Chief Petty Officer

Frank Logan as Captain

Andy Jarrell as Radioman

Lora Kaye as Secretary

Merv Griffin as Himself