David Perry as Narrator (voice)

Caitlyn Jenner as Self

Carl Lewis as Self

Mary Lou Retton as Self

Béla Károlyi as Self

Daley Thompson as Self

Jürgen Hingsen as Self

Edwin Moses as Self

Joan Benoit Samuelson as Self

Grete Waitz as Self

Yasuhiro Yamashita as Self

Rowdy Gaines as Self

Michael Groß as Self

Pierre Quinon as Self

Mike Tully as Self

Luan Jujie as Self

Sebastian Coe as Self

Nawal El Moutawakel as Self

Greg Louganis as Self

Maricica Puică as Self

Ion Puică as Self

Don Peters as Self

Peter Vidmar as Self

Ulrike Meyfarth as Self

Sara Simeoni as Self

Rebecca Twigg as Self

Connie Carpenter-Phinney as Self

Koji Gushiken as Self

Donna Vidmar as Self

Henry Marsh as Self

Aurora Cunha as Self

Mitch Gaylord as Self

Tim Daggett as Self

Bart Conner as Self

Jim Hartung as Self

Scott Johnson as Self