Chris Daly
В роли: Self - Interviewee

Richard Fitzpatrick
В роли: Self - Marine Biologist at James Cook University

Bryan Grieg Fry
В роли: Self - Biochemist and Moleculair Biologist at University of Queensland (как Dr. Bryan Fry)

Mark Harvey
В роли: Self - Department of Terrastrial Zoology at Western Australian Museum

Jonathan Keith
В роли: Self - Interviewee

Rupert Phillips
В роли: Self - Interviewee

Mitch Ryan
В роли: (голос)

Jamie Seymour
В роли: Self - Interviewee

Rick Shine
В роли: Self - Interviewee

Emma Stephens
В роли: Interviewee