Captain Charles "Chuck" T. Baker, a NASA human astronaut who lands on an alien planet called Planet 51 who is also the main protagonist of the movie, Planet 51.
He is voiced by Dwayne Johnson know as the Rock who also portrays Maui from Disney's Moana, Jack Bruno from Race to Witch Mountain and Roadblock from G.I. Joe Retaliation.
Chuck is fun loving and a 'ladies man' which is seen when he tries to talk to the women in the tea club on planet 51. He uses his looks and charms to impress people. He might not be friendly in the beginning but he later warms up to the 'aliens' showing that he can learn to accept different people. He also has the 'right stuff'. He is willing to risk his life for others like when he rescued General Grawl and 'released' Lem from his 'mind control'.
- Chuck Baker is Dwayne Johnson's first animated role.