Sidney Poitier as Clyde Williams

Bill Cosby as Billy Foster

Calvin Lockhart as Biggie Smalls

John Amos as Kansas City Mack

Jimmie Walker as Bootney Farnsworth

Ossie Davis as Elder Johnson

Denise Nicholas as Beth Foster

Lee Chamberlin as Dee Dee Williams

Mel Stewart as Ellison

Julius Harris as Bubbletop Woodson

Paul Harris as Jody Tipps

Val Avery as Lt. Bottomley

George Foreman as Factory Worker

Med Flory as Rufus

Erica Hagen as Girl in Hotel

Jayne Kennedy as Girl at Factory

Rodolphus Lee Hayden as 40th St. Black

Morgan Roberts as Fish an' Chips Freddie

Talya Ferro as Biggie's Crony #1

Doug Johnson as Biggie's Crony #2

Richard Young as Biggie's Crony #3

Cedric Scott as Biggie's Crony #4

Billy Eckstine as Zack

Jimmy Lennon Sr. as Fight Announcer

Hilda Haynes as Telephone Operator

Jophery C. Brown as Bootney Farnsworth's Trainer (uncredited)

Rozelle Gayle as Exhibition Boxing Match Announcer (uncredited)

Birdie M. Hale as Switchboard Operator (uncredited)

Bob Harks as Guard (uncredited)

Rosanne Katon as (uncredited)

Woni Spotts as Child (uncredited)