Suggestions by @squidward

David Oyelowo

as Nyusi in After Serengeti

Tara Strong

as Gronhilda in After Serengeti

Sharlto Copley

as Emperor Pingle in After Serengeti

Manny Jacinto

as Kahuwe in After Serengeti

D'Pharaoh Woon-A-Tai

as Sakuruta in After Serengeti

Kiawentiio

as Tadewi in After Serengeti

Grace Park

as Yura in After Serengeti

James Earl Jones

as Twygaah in After Serengeti

Laz Alonso

as Kosan in After Serengeti

Alexander Siddig

as Kuwa ( older ) in After Serengeti

Forest Whitaker

as Nguvu ( older ) in After Serengeti

Seychelle Gabriel

as Ila in Planet Serengeti

Viola Davis

as Nefera in Planet Serengeti

Rami Malek

as Kuwa in Planet Serengeti

Mamoudou Athie

as Nguvu in Planet Serengeti

Tyrese Gibson

as Nzuri in Planet Serengeti

Keith David

as Twigakubwa in Planet Serengeti

Dee Bradley Baker

as Aepygigantogiraffas 🦒 ( animal sounds ) in Planet Serengeti

James Earl Jones

as Twygaah in Planet Serengeti

Elizabeth Debicki

as Kyubey in Puella Magi Madoka Magica