Tomas Calderon is one of the agents of Robert Gonzales' S.H.I.E.L.D. faction, which are S.H.I.E.L.D. agents who formed the faction after the HYDRA uprising. He tried to kill a member of Phil Coulson's team, Daisy Johnson (then known as Skye) but ultimately failed.
He was portrayed by Kirk Acevedo, who also portrays Ricardo Diaz/Richard Dragon in Arrow.