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 Trudy 1 guest appearances Shannon 1 guest appearances Cy Bernstein 1 guest appearances Dr. Davis 1 guest appearances 'Wildfire' Singer 1 guest appearances Damita Jo 1 guest appearances Back-up Singer 1 guest appearances Back-up Singer 1 guest appearances Terry 'The Tank' Seranski 1 guest appearances Suzie Berlooty 1 guest appearances Weasly Kid 1 guest appearances Gorilla #1 1 guest appearances Gorilla #2 1 guest appearances Girl in Class 1 guest appearances Mrs. Delpino 1 guest appearances Janitor 1 guest appearances Ray 1 guest appearances Nurse Klondale 1 guest appearances Susan 1 guest appearances John Lucas 1 guest appearances ⇤ « 3 4 5 6 7 8 9 10 11 12 » ⇥