I've looked everywhere but I can't find which characters I'm missing other than ike (which I'm planning on going back for). I have 104 friends, so I'm missing like 16 I think. Thanks in advance.

EDIT: I figured it out, I forgot to open the home tab and get all the new friend requests which was why all the new ones never popped up. Only one I actually needed was Leroy Mullens. Thanks for the help everyone!