Hank GreenSelf - Host / 导演 / 编剧 / 执行制片人 Michael ArandaSelf - Host Stefan ChinSelf - Host / 制片人 / Cinematographer / 剪辑师 Savannah GearySelf - Host / 导演 / 制片人 / 剪辑师 Rose Bear Don't WalkSelf - Host Niba Audrey NirmalSelf - Host Caitlin HofmeisterSelf / 导演 / 制片人 / Cinematographer / 剪辑师 Jessi Knudsen CastañedaSelf - Animal Wonders Blake de PastinoSelf - Host / 编剧 / 剪辑师 Emily GraslieSelf - Contestant John GreenSelf - Contestant Madelyn LeemBruggenSelf - Host / 编剧 Lindsay NikoleSelf - Host Phil PlaitSelf - Contestant Rob RoserSelf - Fermilab Physicist Nicholas GrahamSelf - School of Computing, Queen's University Lindsey DoeSelf - Contestant Paulette JonesSelf - Meadowlarkscience.com Doug EmlenSelf - Author: Animal Weapons Andrij HolianSelf - The University of Montana Leonardo DiCaprioJack Dawson Katelyn SalemSelf - Contestant Nicole SweeneySelf - Contestant / 执行制片人 Rachel NavarroSelf - Contestant Mike FalzoneSelf - Contestant Katherine GreenHost - Contestant Nicholas JenkinsSelf - Contestant / Cinematographer Megan ToenyesSelf - Contestant Sam SchultzSelf - Announcer / 导演 / 制片人 / Art Director / Cinematographer / 剪辑师 Trace DominguezSelf - Contestant Alexa BillowSelf - Contestant / 编剧 Ceri RileySelf - Instructor / 编剧 Jaida ElcockSelf - Host / 编剧 Richard WranghamSelf - Expert Alexis DahlSelf - Guest Host / 编剧 Sam SchultzSelf - Announcer / 导演 / 制片人 / Art Director / Cinematographer / 剪辑师 Hiroka Matsushima导演 / 制片人 / Cinematographer / 剪辑师 Aimee Roberts导演 / 副制片人 / Art Director / 剪辑师 Hank GreenSelf - Host / 导演 / 编剧 / 执行制片人 Caitlin HofmeisterSelf / 导演 / 制片人 / Cinematographer / 剪辑师 Savannah GearySelf - Host / 导演 / 制片人 / 剪辑师 Jess Stempert导演 / 制片人 / 剪辑师 Attabey Rodríguez Benítez编剧 Alexa BillowSelf - Contestant / 编剧 Alexis DahlSelf - Guest Host / 编剧 Jaida ElcockSelf - Host / 编剧 Madelyn LeemBruggenSelf - Host / 编剧 Alyssa Lerner First编剧 / 剪辑师 Ceri RileySelf - Instructor / 编剧 Blake de PastinoSelf - Host / 编剧 / 剪辑师 Nicole SweeneySelf - Contestant / 执行制片人 Stefan ChinSelf - Host / 制片人 / Cinematographer / 剪辑师 Faith Evelyn Schmidt副制片人 / Cinematographer Sarah Suta制片人 / Cinematographer / 剪辑师 Jenova Payton副制片人 / Cinematographer / 剪辑师 Peter WinklerProduction Designer Madison LynnCinematographer / 剪辑师 Louey WinklerCinematographer / 剪辑师 Bill MeadCinematographer / 剪辑师 Nicholas JenkinsSelf - Contestant / Cinematographer Nate BiehlCinematographer / 剪辑师 Sarah MeismerCinematographer / 剪辑师 Josef MeteshCinematographer / 剪辑师 
