Dennis Hopper | Dennis Quaid | Dennis the Menace | Dennis Rodman | Dennis Miller | Dennis Potter | Dennis Haysbert | Dennis the Menace (1959 TV series) | Dennis Kucinich | Dennis Morgan | Dennis Lillee | Dennis Dart | Dennis Prager | Dennis Oppenheim | Dennis Waterman | Dennis Green | Dennis Franchione | Dennis | Sandy Dennis | Hugh Dennis | Dennis Morgan (songwriter) | Dennis Lehane | Dennis Adams | Dennis Wilson | Dennis Wheatley | Dennis Tito | Dennis O'Keefe | Dennis Cooper | Dennis Christopher | Dennis Brown |
Guest stars in the series' 42-episode run included: Don Cheadle, Kim Delaney, Dennis Dugan, Norman Fell (who worked with Ritter on Three's Company), Miguel Ferrer, Jack Gilford, Mark Hamill, Joanna Kerns, Richard Kind, Dan Lauria, Jane Leeves, Lorna Luft, David Paymer, Barbara Rush, and Shannon Tweed.