After his debut in 5:16 The Stand-in, audiences 'round the world loved this character so much that he came back in at least one episode for the rest of the seasons of Seinfeld. This was due to the superb acting talent of Danny Woodburn, in his comedic abilities as well as his being friends with Kramer, who is so much taller than him.
We know of his troubles that are caused by his good friend Kramer, who ruins him by doing Mickey's disease, gets him fired b/c of his commie tendencies, and nearly ruins him b/c as Bradley, he won't sit down. However, Mickey screws Kramer by saying "goodnight" in his raspy adult voice. He also gets mixed up girlwise with Mick during his 4th wedding. He lets us enter the secret world of midgets, It's little people!, with their unwritten rules about lifts, which just aren't done. His dad is a dentist and Tim Whatley was one of his dad's students. On any day other than his son's wedding, he knocks anti-dentites' teeth out.
In the end, one thing can be said about Mickey - he lives next to Puddy.
(per episode except Cousin Jeffrey, Larry David, Farvman, and Lauren Bowles)
Mickey Abbott = 7
Mickey Abbott - 5:16 The Stand-in