Marc-André Leclerc

Self

Acting

Brette Harrington

Self

Acting

Alex Honnold

Self

Acting

Reinhold Messner

Self

Acting

Ueli Steck

Self (archive footage)

Acting

Dean Potter

Self (archive footage)

Acting

Derek Hersey

Self (archive footage)

Acting

Jon Walsh

Self

Acting

Tommy Caldwell

Self (archive footage)

Acting

Austin Siadak

Self

Acting

Peter Mortimer

Self

Directing

Barry Blanchard

Self

Acting

Michelle Kuipers

Self

Acting

Will Stanhope

Self

Acting

Will Gadd

Self

Acting

Ryan Johnson

Self (archive footage)

Acting