TV Line says that Butler, who played Jones in Life Unexpected, will appear in an episode of the crime drama in March.
He is expected to play Benjamin, a good-looking and confident student who attends a top prep school in Manhattan.
However, Benjamin becomes a murder suspect when one of his classmates is killed and the CSI team arrives to investigate.
Butler is expected to appear in Life Unexpected's season finale tomorrow. He has also had guest roles in shows such as The Defenders and CSI: Miami and starred in the movie Aliens In The Attic.