Columbo - Full Cast & Crew - TV Guide
Vagebond's Columbo Screenshots: Columbo 36 - Now You See Him (1976) part 05
Watch Columbo Online, Season 6 (1976)
Casting Columbo Staffel 6
Columbo (TV Series 1971–1978) - “Cast” credits - IMDb
Columbo (TV Series 1971–1978) - “Cast” credits - IMDb
Columbo Goes to the Guillotine (TV Movie 1989) - IMDb
Columbo (TV Series 1971–1978) - “Cast” credits - IMDb
Episode review: Columbo Playback – THE COLUMBOPHILE BLOG
Columbo S6E2 (1976) - Cast & Crew — The Movie Database (TMDB)
Columbo Try and Catch Me (TV Episode 1977) - IMDb