[1][2] He was cast in a starring role in the world premiere of Baruch Lumet's stage production Once Upon a Tailor, which debuted at The Circle Theater.

Wyenn portrayed Romano, an Italian film representative who attempts to recruit Lana Turner's character, Lora Meredith, in Imitation of Life in 1959.

[1] In the episode, Wyenn's character transported to the past straight into a hangman's gallows in the American frontier during the 1800s.

Wyenn's numerous other television credits, spanning the 1950s, 1960s, and 1970s, included Leave it to Beaver, Gunsmoke, Dragnet, Barnaby Jones, Mission: Impossible, The Man from U.N.C.L.E., Perry Mason, Quincy, M.E., The Six Million Dollar Man, T. J. Hooker, Hart to Hart, The Untouchables, Voyage to the Bottom of the Sea, The Virginian (TV series), Wanted: Dead or Alive S2 E15 as Gib Rafford in "Chain Gang" (1959), Burke's Law and Zorro.

[2] Wyenn died at the Motion Picture & Television Country House and Hospital in Woodland Hills, California, on January 30, 2015, at the age of 95.