David Suzuki
В роли: Self - Host

Lucas Brotz
В роли: Self - Marine Biologist, University of British Columbia

Tom Doyle
В роли: Self - Marine Biologist, Coastal & Marine Research Centre

Angel Yanagihara
В роли: Self - Biochemist, University of Hawaii

Sean Colin
В роли: Self - Marine Biologist, Roger Williams University

Jack Costello
В роли: Self - Marine Biologist, Providence College

Mark Martindale
В роли: Self - Marine Biologist, University of Florida

Sun Song
В роли: Self - Director, Qingdao Institute of Oceanology

Shin Kubota
В роли: Self - Marine Biologist, Seto Marine Biological Lab of Kyoto University

Wynn Gale
В роли: Self - Jelly Baller

Jim Page
В роли: Self - Marine Biologist, Georgia Department of Natural Resources

Terry Cheng
В роли: Self - Jellyfish Processor