Main Characters Douglas "Doogie" Howser 97 main appearances Vinnie Delpino 97 main appearances Dr. David Howser 82 main appearances Katherine O'Brien Howser 81 main appearances Nurse Mary Margaret "Curly" Spaulding 69 main appearances Dr. Benjamin Canfield 66 main appearances Janine Stewart 23 main appearances Raymond Alexander 33 main appearances Dr. Jack McGuire 33 main appearances Wanda Plenn 19 main appearances
Recurring Guest Characters Director 1 guest appearances Dr. Sims 1 guest appearances Tim 1 guest appearances Adam 1 guest appearances Mark 1 guest appearances Nurse Dancer 1 guest appearances Matthew 1 guest appearances Denise Caldwell 1 guest appearances Bob 1 guest appearances Karl 1 guest appearances Japanese Businessman 1 guest appearances Man with Balloons 1 guest appearances Man in Elevator 1 guest appearances Sheila Davidson 1 guest appearances Waitress 1 guest appearances M.C. 1 guest appearances Coleman 1 guest appearances Mrs. McKinley 1 guest appearances Woman Patient 1 guest appearances Lois 1 guest appearances ⇤ « 15 16 17 18 19 20 21 22 23 24 » ⇥