John Cassavetes as Axel Nordmann

Sidney Poitier as Tommy Tyler

Jack Warden as Charles Malik

Kathleen Maguire as Ellen Wilson

Ruby Dee as Lucy Tyler

Val Avery as Brother

Robert F. Simon as George Nordmann

Ruth White as Katherine Nordmann

William A. Lee as Davis

John Kellogg as Detective

David Clarke as Wallace

Estelle Hemsley as Mrs. Price

Roy Glenn as Stevedore (uncredited)

Ralph Bell as Night Boss (uncredited)

Mike Dana as Detective (uncredited)

Charles Jordan as Old Stevedore (uncredited)

Mike O'Dowd as Malick's Henchman (uncredited)