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 Nerd 2 guest appearances Dr. Gary Russo 2 guest appearances Dr. Greenburg 2 guest appearances Mr. Sullivan 2 guest appearances Paramedic 2 guest appearances Dr. Rickett 2 guest appearances Don O'Brien 2 guest appearances Patient 2 guest appearances Maggie Plenn 2 guest appearances Will 2 guest appearances Dr. Owens 2 guest appearances Mrs. Stevens 2 guest appearances Mr. Jenkins 2 guest appearances Sandra 2 guest appearances Aaron 2 guest appearances Mr. Stevens 2 guest appearances Howard Stewart 2 guest appearances Nancy Stewart 2 guest appearances Cecilia 2 guest appearances Dr. Elena Spencer 2 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥