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 ER Doctor 1 guest appearances Denise 1 guest appearances Dr. Peters 1 guest appearances Hotel Manager 1 guest appearances Tony 1 guest appearances Katie 1 guest appearances Kelly 1 guest appearances Suspect 1 guest appearances Mr. Gonzales 1 guest appearances Mrs. Iger 1 guest appearances Officer Reese 1 guest appearances Bobby Iger 1 guest appearances Brandon Tartikoff 1 guest appearances Hector Gonzales 1 guest appearances Maria Gonzales 1 guest appearances Megan's Mother 1 guest appearances Megan 1 guest appearances Dr. Wegman 1 guest appearances Construction Worker 1 guest appearances Fiona Wilkes 1 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥