This article is referring to the character, for the attraction see The Timekeeper
The Timekeeper was the main character in the attraction of the same name.
The Timekeeper is a eccentric scientist from M.I.T.T. (Metropolis Institute of Time Travel), who by inspiration from the works of Jules Verne, builds a time machine.
With the help of his assistant, 9-Eye, the Timekeeper was able to transport himself and the guests to different times in Earth's past, present, and future.