The actor went through the Alberta neighborhood in Tuscaloosa and told media that he was working with local officials to organize a benefit. He said a date was not set.
"I want some money, hope, faith and healing to the area," said Sheen, the former star of the sitcom of "Two and a Half Men."
Sheen was fired from the show in March and has been in a bitter dispute with executive producer Chuck Lorre and Warner Bros. Television. Since then, he's launched a stage tour that has captured attention.
Sheen said he decided to visit after receiving an invitation via Twitter from a University of Alabama student.
The Associated Press contributed to this report.