Kevin Costner

Marcus Sommers

David Marshall Grant

David

Rae Dawn Chong

Sarah

Alexandra Paul

Becky

Janice Rule

Mrs. Sommers

Luca Bercovici

Muzzin

Robert Townsend

Jerome

John Amos

Dr. Conrad

Jennifer Grey

Leslie

Barbara Barron

Autograph Hound

Robert Anderson

Reporter

Eddy Merckx

Self

Steven Van Zandt

Cyclist

G. Larry Butler

Bicycle Enthusiast (uncredited)