Marcus Metilius Aquillius Regulus (his recorded full name is Marcus Metilius Aquillius Regulus Nepos Volusius Torquatus Fronto) was a Roman senator of the second century AD.
[2] Regulus himself was the son of Publius Metilius Secundus, suffect consul in 123.
[3] Olli Salomies, in his study of the naming practices of the first centuries of the Roman Empire, notes that it "seems plausible enough" to infer his mother was a member of the gens Aquillia, and suggests that his praenomen was inherited from that side of the family.
[4] His career began in his teens with the Vigintiviri, as one of the tresviri monetalis;[5] assignment to this board was usually allocated to patricians or favored individuals.
[7] Regulus is known to have held the priestly offices in the sodales Flaviales, the Salii collini, and in the collegium of augurs.