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 Janine Stewart 12 guest appearances Raymond Alexander 1 guest appearances Wanda Plenn 13 guest appearances Dr. Ron Welch 17 guest appearances Nurse Michele Faber 6 guest appearances Paramedic 5 guest appearances Nurse 4 guest appearances Young Doogie 4 guest appearances Michael Plenn 3 guest appearances Nurse 3 guest appearances Dr. Lucas 3 guest appearances Dr. Michaels 3 guest appearances Carmine Delpino 3 guest appearances Mr. Chen 3 guest appearances Patty Plenn 2 guest appearances Dr. Goring 2 guest appearances Irene O'Brien 2 guest appearances Nurse Klein 2 guest appearances Alvin 2 guest appearances Young Vinnie 2 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥