Calificación
Reparto

Scott Baker
Himself - Whale Geneticist

John Calambokidis
Himself - Cascadia Research

Darlene Kenton
Herself - Woods Hle

Bruce Matz
Himself - Marine Mammal Institute

Tom Selleck
Narrator (voice)

Eric Olson
Self - Scripps

Stephen R. Palumbi
Self - Whale Geneticist

Gisli Vikingson
Self