Mike Tyson

as Self

Trevor Berbick

as Self

Mills Lane

as Self

Don King

as Self

Michael Spinks

as Self

Larry Holmes

as Self

Thomas Hearns

as Self

Muhammad Ali

as Self

Héctor Camacho

as Self

Sylvester Stallone

as Self

Tony Danza

as Self

Eddie Murphy

as Self

Kirk Douglas

as Self

Rob Lowe

as Self

Cus D'Amato

as Self (archive footage)

Larry Merchant

as Self

Sugar Ray Leonard

as Self