Cecil Fredericks is of the three main antagonists of the first film with the other two security guards, Reginald and Gus. Instead of handing them over to the authorities, Larry has them become janitors at the museum. Cecil, Reginald, and Gus appear in the third film when Larry goes to ask them about the Tablet of Ahkmenrah, explaining the tablet keeps glowing green. He is portrayed by Dick Van Dyke with his younger self portrayed by Percy Hynes White in the third film.