Bieri made guest appearances in many TV shows, including Daniel Boone, Gunsmoke, Hawaii Five O, Bonanza, Buck Rogers in the 25th Century, The Dukes of Hazzard, The Partridge Family, Hogan's Heroes, Quincy, M.E. and Knight Rider in two episodes, playing a different villain in each. He was featured in recurring roles in Room 222 (as the vice principal) and St. Elsewhere. Bieri also appeared in "The Final Chapter," the first episode of the 1977 NBC series Quinn Martin's Tales of the Unexpected (known in the United Kingdom as Twist in the Tale), and in the "Murder! Murder!" episode of the NBC series The Eddie Capra Mysteries in 1978.