I always thought he looked kinda like the Unix SysAdmin Wizard, pictured at right.
Except he'd have flippers instead of stars on his hat, and bumpers on his robes.
And he'd be standing in front of a pinball game, of course.
I'm not sure if I'm disappointed, or enthralled with the new information. It's amazing what happens when you finally hear the story in the song. . .
Further thought pending.