I'd swear there was an old thread about this before, but I can't find it.
Sheila Joyce
The cowgirl of Grand Parade
Bernie Murphy
The guy who dances with headphones on
Noel 'The greatest man alive' (More Ballinlough character than Cork, I'll grant)
I (like everyone else in Uni over the period, best I can gather) knew him some bit and I wouldn't include him with random nutters on the street but he would certainly be a bit of a character by any stretch.