表演
kathie hahn/herself - fan of alex
jake ward/himself - correspondent
clive d.l. wynne/himself - university of florida
mark hall/himself - biomes marine biology center
roger hanlon/himself - marine biological laboratory
irene pepperberg/herself - biologist
kathleen lance/herself - fan of alex
teri bolton/herself - roatan institute for marine sciences
anna schwartz/herself - research assistant
stan kuczaj/himself - university of southern mississippi
奈尔·德葛拉司·泰森/himself - host
carol sokalski/herself - fan of alex
doug hamilton/himself - correspondent
jean berko gleason/herself - psycholinguist, boston university
diana reiss/herself - hunter college
dallas k. schittle../himself - fan of alex
arlene lewin/herself - lab manager
brian hare/himself - duke university
john w. pilly/himself - wofford college
角色
herself - biologist
herself - fan of alex
herself - hunter college
herself - lab manager
herself - psycholinguist
herself - research assistant
herself - roatan institute for marine sciences
himself - biomes marine biology center
himself - correspondent
himself - duke university
himself - fan of alex
himself - host
himself - marine biological laboratory
himself - university of florida
himself - university of southern mississippi
himself - wofford college
