To celebrate Ms. O's 100th anniversary, the agents go back in time to witness her last case as an agent. However, something goes wrong and they change the future for the worse.
Olympia
Otis
Ms. O
Oona
Owen
Chuck Shmumbers
Hiccups Lady
Odena
Odd Todd
Trumpet Agent
Osmand
Gino Confalone
Dramatic Kid Announcer (as Christopher River)
O'Donahue
Patternista / 80's Ms. O