Doogie Howser, M.D. (1989-1993) 30 minutes Comedy / Drama Cast: Neil Patrick Harris as Dr. Douglas 'Doogie' Howser Max Casella as Vincent 'Vinnie' Salvatore Delpino James Sikking as Dr. David Howser Belinda Montgomery as Katherine Howser Lisa Dean Ryan as Wanda Plenn Lucy Boryer as Janine Stewart Lawrence Pressman as Dr. ...