On screen
Cast
15 credited performers
Michael deGruy
Self (archive footage)
Artwork unavailable
Gracie Atkins
Self
Artwork unavailable
Paul Atkins
Self
David Attenborough
Self
James Cameron
Self
Artwork unavailable
Frances DeGruy
Self
Artwork unavailable
Max DeGruy
Self
Artwork unavailable
Mimi Armstrong DeGruy
Self
Artwork unavailable
Bruce Carlson
Self
Artwork unavailable
Frank DeGruy
Self
Artwork unavailable
Glenn DeGruy
Self
Artwork unavailable
Katherine DeGruy
Self
Artwork unavailable
Ken DeGruy
Self
Sylvia Earle
Self
Artwork unavailable
Peck Euwer
Self