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 Mother 1 guest appearances Dr. J 1 guest appearances Dr. Ramsey 1 guest appearances Alan Webster 1 guest appearances William Johnson 1 guest appearances Elgin Bane 1 guest appearances William Finkelstein 1 guest appearances Policeman #1 1 guest appearances Policeman #2 1 guest appearances Driver 1 guest appearances Doctor 1 guest appearances Waiter 1 guest appearances Nurse 1 guest appearances Admitting Clerk 1 guest appearances Anesthesiologist 1 guest appearances Officer Whitman 1 guest appearances Brian 1 guest appearances Jeff Rutledge 1 guest appearances Kevin 1 guest appearances Detective Morris 1 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥