I never saw this mentioned here, the tv series Wild Wild West starred Ross Martin and Robert Conrad, also had various Columbo actors in it, like, Agnes Moorehead, Ida Lupino, Leslie Nielsen, Martin Landau, Ricardo Montalban, Nehemiah Persoff, Robert Loggia, Val Avery, Harold Gould, John Dehner, Suzanne Pleshette, Kevin McCarthy, Bradford Dillman, Thayer David, Bernard Fox, Richard Anderson, William Windom, Antoinette Bower, Don Gordon, Arlene Martel, possibly others too?