Marcellus Wallis, character in movie "Pulp Fiction"
Marcellus Shale, controversial underground source of natural gas that is at the center of the hydraulic fracturing debate
Marcellus Gallio, Roman tribune of the 1953 movie, "The Robe" played by RichardBurton
Marcellus "Marcel" Gerard, character in TV's "The Originals"
Marcellus, minor character in Shakespeare's "Hamlet"