ideas
How about these:
An Ancient american indian shaman, who, on occasion has dealings with The entity known as time (Female in my game...think DCs vertigo)
A speedster who actually transforms into a comet when a certain speed is reached.
A time lord(Dr. Who?)
For a high level game, A child of one of the princes of the universe(mentioned in Capt. Aussies and entropies write-ups)
A Avatar of Chaos(5d6 luck 5d6 unluck Activation of 11- on most things,but the luck give the acts a unknown variable-/+ 1 for each one activated) good option if you want to run a insane pc
An elemental of some sort
A pro wrestler (Vance Lewis the Killer Dwark, or The Kentuckyhead-Hunter
An Avatar of a lost deity, or of the animal patheon (the bear god,the eagle god etc.)
Im sure I will think of more, I hope these help.