What about Mr Janitor?
(
Redsushi! Whoop! Whoop! Yes, that one!,
Wed 22 Nov 2006, 12:10,
archived)
We never find out his name.
Or at least not in the 3 series I have.
(
Captain Wow currently being a cunt in Infamous,
Wed 22 Nov 2006, 12:14,
archived)