Character actor Roger Mosley gained national fame as Theodore Calvin, aka .T.C., on the long-running TV adventure series Magnum P.I. (1980-88). In his earlier acting days, Mosley appeared in the 1972 horror quickie Terminal Island. He later shared star billing with Nell Carter in the 1990 sitcom You Take the Kids, then spent two seasons as Coach Ricketts on the ABC comedy weekly Hangin' With Mr.