Father Time (Hero Stories)

Father Time is a character who is part of the HERO: The Guardian Smurf story series. He is the time guardian who lives in a workshop in the Smurf Forest, whose job is the control of time, although there are limits as to how much he can control time. His workshop holds various timepieces and items, one of which is the Reverse Clock which ended up de-aging three adult Smurfs -- Nat, Snappy, and Slouchy -- into Smurflings.