watch 01:48 The Loop (Movies) Do you like this video? Thunk is a character in The Croods. He is Grug and Ugga's son. Contents[show] Biography Beginnings Coming soon! In The Croods Coming soon! Personality Coming soon! Appearance Thunk Crood is small, and has short brown hair. Trivia Is the only male child of Grug and Ugga. Gallery DreamWorks Wiki has a collection of images and media related to Thunk Crood. Retrieved from "https://dreamworks.fandom.com/wiki/Thunk_Crood?oldid=76258" Categories: Characters The Croods characters Males Heroes Humans Kids Sons Foolish Characters Silly Characters Protagonists Community content is available under CC-BY-SA unless otherwise noted.