Michael J. Pollard ("Miri") shows up in two early episodes of the first season of Dobie Gillis as Jerome Krebs, Maynard's cousin. Pollard was brought in when Bob Denver got his draft notice. After Denver failed his physical, he came back and resumed his role. Pollard was paid off on his contract and released. It's too bad we never saw Pollard return to Star Trek, he might have been good as a Ferengi. Of course, William Schallert ("Tribbles") was a recurring character on the show as teacher Mr. Pomfritt, and it's probably where I first saw him. Before Bob Denver was Gilligan, I knew him as Maynard G. Krebs. Personal thanks to Harvey for making it possible for me to see Dobie again after more than 50 years. I was 8 when it first aired. Edit: Yvonne Craig as Dobie's love interest of the week, member of a family of trapeze artists.