Sylvia Earle Ph.D.
В роли: Self - National Geographic Explorer (As Dr. Sylvia A. Earle)

Richard Gillette
В роли: Self - Executive Director of Spirit of the Sea (As Capt. Richard Gillette)

Meghan Hartnett
В роли: Self - Program Director, Sailing Education Adventures

Ann Holmes
В роли: Self - Scientist Graduate Student Researcher, SFSU

Kimball Livingston
В роли: Narrator (голос)