Tadashi Horino (August 14, 1921 — October 3, 2002) appeared in two episodes of M*A*S*H first as a second Korean civilian named "Officer of the Day (M*A*S*H)" in season 2, then as a bartender in "The Consultant (M*A*S*H)" in Season 3.
Horino had an extensive career appearing in many bit roles in both film and television. He appeared in such films as The Kentucky Fried Movie, Go Tell the Spartans, Oh, God! Book II, Bachelor Party, Red Sonja, Remote Control, Bill & Ted's Bogus Journey, Teenage Mutant Ninja Turtles III, Surf Ninjas, Brother, Mulholland Drive and Kung Pow! Enter the Fist. On television he appeared in the shows I Spy, The Wackiest Ship in the Army, several episodes of Kung Fu, Mannix, Charlie's Angels, Wonder Woman, Night Court, Amazing Stories, and Tour of Duty.