Terry Frost spent the 1940s and 1950s appearing mostly as villains in dozens of B-movie westerns for the studios Monogram and PRC, including roles in The Maverick, Outlaws of Texas, and The Girl from Monterey. During the 1950s he was also heavily involved with television, appearing often in almost every Western series ever produced, from The Gene Autry Show to Gunsmoke to Rawhide and Annie Oakley.