Francis Manapul

饰：Himself

彼德·奥德博拉治

Peter Outerbridge

饰：Self - Narrator

George Burgess

饰：Self - Director, Florida Program for Shark Research

Tom Comet

饰：Self - Pyrotechnics Specialist

Steve Leonard

Steve Leonard

饰：Self - Adventurer

Manasa Bulivou

饰：Self - Village Elder

Jim Cosgrove

饰：Self - Research Associate, British Columbia Museum

Jeffrey Meldrum

饰：Self - Anatomist, Idaho State University