William Holden (Al Walker)
Lee J. Cobb (Dr. Andrew Collins)
Nina Foch (Betty)
Adele Jergens (Laura Stevens)
Stephen Dunne (Owen Talbot)
Phil Tully (Cop)
Harry Harvey, Jr. (John Larrapoe)
Edward Earle (McCoy)
Pat McGeehan (Commentator)
Robert Osterloh (Pete)
Kathryn Card (Nora)
Bobby Hyatt (Bobby)
Ellen Corby (Agnes)
Charles Cane (Sheriff)
Robert B. Williams (Williams)
Lois Maxwell (Ruth Collins)
Berry Kroeger (Mike)
Steven Geray (Prof. Fred Linder)
Wilton Graff (Frank Stevens)