Harry Wismer
— Narrator
Paavo Nurmi
— Himself (archive footage)
Fiorello LaGuardia
— Himself (archive footage)
Arne Andersson
— Himself (archive footage)
Jules Ladoumegue
— Himself (archive footage)
Bill Bonthron
— Himself (archive footage)
John Lovelock
— Himself (archive footage)
Glenn Cunningham
— Himself (archive footage)
Gene Venzke
— Himself (archive footage)
Sidney Wooderson
— Himself (archive footage)
Gunder Hägg
— Himself (archive footage)
Roger Bannister
— Himself (archive footage)
John Landy
— Himself (archive footage)
Christopher Chataway
— Himself (archive footage)
Laszlo Tabori
— Himself (archive footage)
Ron Delaney
— Himself (archive footage)
Joe Bailey
— Himself (archive footage)