MarcusClaudius Marcellus, several Roman statesmen and generals Saint Marcellus of Tangier, 3rd century Roman martyr
Popes Marcellus I and II, bishops of Rome
Marcellus Wiley, American football player
Marcellus Hall, American musician and illustrator
Marcellus McCarver, American rapper
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"