• 

  Scott Baker

  Scott Baker

  饰：Himself - Whale Geneticist

• 

  John Calambokidis

  John Calambokidis

  饰：Himself - Cascadia Research

• 

  Darlene Kenton

  Darlene Kenton

  饰：Herself - Woods Hle

• 

  Bruce Matz

  Bruce Matz

  饰：Himself - Marine Mammal Institute

• 

  Erin Olson

  Erin Olson

  饰：Herself - Scripps

• 

  Stephen R. Palumbi

  Stephen R. Palumbi

  饰：Himself - Whale Geneticist

• 

  Gisli Vikingson

  Gisli Vikingson

  饰：Himself

• 

  汤姆·塞立克

  Thomas William Selleck

  饰：Narrator,