Rachel McAdams
— Narrator (voice)
Sting
— Self
Ken Balcomb
— Self
Sylvia Earle
— Self
Christopher W. Clark
— Self
Michael Jasny
— Self
Leila Hatch
— Self
Paul Spong
— Self
Molly Patterson
— Self
Brandon Southall
— Self
Katie Moore
— Self
Bjornar Nicolaisen
— Self
Jean-Michel Cousteau
— Self
George Prochnik
— Self
Joel Reynolds
— Self
Kathy Metcalf
— Self
Steven Honigman
— Self
William J. Parker
— Self