Saul Goodman

James "Jimmy" McGill, better known under the professional alias Saul Goodman, is a major supporting character in Breaking Bad and the protagonist of Better Call Saul.

He was once infamous con-man Slippin' Jimmy, but attempted at reforming as a legitimate lawyer. He ultimately succumbed to his felonious instinct, however, and became notorious criminal attorney Saul Goodman. He most prominently worked as a mob lawyer for Walt's Drug Empire.

Trivia

 * He compares himself to Tom Hagen from The Godfather Trilogy.
 * His name is a play on the phrase "S'all good, man".