Roche played dramatic supporting roles as well, often playing deceptively ordinary men who are shown to be capable of ruthlessness, menacing violence or disturbing perversity. In "Murder, She Wrote", he played a bad cop who attempts to kill Jessica Fletcher, and as a criminal mastermind posing as a Catholic bishop in the film "Foul Play". He appeared in two episodes of "Kojak". In 1977, he appeared in "Never Con a Killer" (the pilot episode for "The Feather and Father Gang"). He played alien Jor Brel in an episode of "" titled .