Glenn Ford character Richard Dadier
Anne Francis character Ann Dadier
Louis Calhern character Jim Murdock
Margaret Hayes character Lois Judby Hammond
John Hoyt character Mr. Warneke
Richard Kiley character Joshua Y. Edwards
Emile Meyer character Mr. Halloran
Warner Anderson character Dr. Bradley
Basil Ruysdael character Prof. A.R. Kraal
Sidney Poitier character Gregory W. Miller
Vic Morrow character Artie West
Dan Terranova character Belazi
Rafael Campos character Pete V. Morales
Paul Mazursky character Emmanuel Stoker
Horace McMahon character Detective
Jamie Farr character Santini
Danny Dennis character De Lica
David Alpert character Lou Savoldi (uncredited)
Jimmy Ames character Man (uncredited)
Dwayne Avery character Student (uncredited)
Ben Avila character Student (uncredited)
Henny Backus character Miss Brady (uncredited)
Doyle Baker character Wilson (uncredited)
Beau Buchanan character Student (uncredited)
Benny Burt character Bartender (uncredited)
Joan Danton character Irate Mother (uncredited)
Valentin de Vargas character Latino Student (uncredited)
Richard Deacon character Mr. Stanley (uncredited)
Gary Diamond character Child (uncredited)
James Drury character Hospital Attendant (uncredited)
Del Erickson character Student (uncredited)
John Erman character Daly (uncredited)
Robert Foulk character George Katz (uncredited)
Jack Gargan character Electrician (uncredited)
Enzo Giobbe character Student (uncredited)
Chuck Hicks character Applicant (uncredited)
Paul Hoffman character Mr. Lefkowitz (uncredited)
Teddy Infuhr character Needles (uncredited)
Tommy Ivo character Frightened Student (uncredited)
Ike Jones character Mechanic (uncredited)
Nikki Juston character Woman (uncredited)
Kenner G. Kemp character Italian Restaurant Patron (uncredited)
Carl Kress character Peewee (uncredited)
Mickey Little character Boy on Bus (uncredited)
Tom McKee character Manners (uncredited)
Jerry Mickelsen character Krauss (uncredited)
Peter Miller character Joe Murray (uncredited)
Jimmy Murphy character Frank Adams (uncredited)
Dorothy Neumann character Miss Panucci (uncredited)
Manuel París character Italian Restaurant Proprietor (uncredited)
Virginia Pherrin character Teacher in Lounge (uncredited)
Chris Randall character Levy (uncredited)
William Rhinehart character Man (uncredited)
Steven Roberts character Boy on Bus (uncredited)
Willard Sage character Radio Announcer (voice) (uncredited)
B.W. Sandefur character Student (uncredited)
Emil Sitka character Father (uncredited)
Bobby Somers character Student (uncredited)
Lee Stanley character Kid (uncredited)
Steve Stevens character Boy on Bus (uncredited)
Yoshihiro Tomita character Tomita (uncredited)
Skip Torgerson character Boy on Bus (uncredited)
Arthur Tovey character Bystander at Accident Scene (uncredited)
Martha Wentworth character Mrs. Brophy (uncredited)
Jerry Wynne character Murphy (uncredited)
