The 4th Fisherman also works, along with others.
When you use the guy to the left of Cerulean Bridge, a guy appears in the corner when the menu pops up.
This is off topic, but you know when Misingno has the appearence 0f a blob? That's actually 1/2 of a head, like the guy you talk to before you Fly to Cinnabar to encounter Missigno.
Romney '08!