Self

Marc-André Leclerc

Self

Brette Harrington

Self

Peter Mortimer

Self

Barry Blanchard

Self

Michelle Kuipers

Self

Will Stanhope

Self

Will Gadd

Self (archive footage)

Ryan Johnson

Self

Alex Honnold

Self

Reinhold Messner

Self (archive footage)

Ueli Steck

Self (archive footage)

Dean Potter

Self (archive footage)

Derek Hersey

Self

Jon Walsh

Self (archive footage)

Tommy Caldwell

Self

Austin Siadak

Director

Peter Mortimer

Director

Nick Rosen

Sound Re-Recording Mixer

Eliott Taylor

Executive Producer

Scott Bradfield