Max Greenman is a character who appears in the Season 4 episode of Quantum Leap titled "It's A Wonderful Leap". The part of Max is played by actor Ross Partridge.
About Max and "the Medallion"[]
Max, who's a NYC cab driver who works for O'Connor Cab Co., trying to earn enough money to open his own cab service, along with his father Lenny (Jerry Adler). Max is hoping to win his own cab driver's medallion in the contest his employer is running to use as money to start their taxi service. Along the way, he meets a woman, Angelita Carmen Guadalupe Cecelia Jimenez (Liz Torres), who claims to be a guardian angel, can see Al, and pretends to believe that the later is the devil.
When Max, who's really Sam as he, literally runs over a Angelita, She reveals her mission to him, and can also see hologram Al, who doesn't get along very well with her. Sam's mission, however, is to keep Max from getting shot and paralyzed for life, as the original events had happened before his leap into him, and from possibly getting himself killed while still earning the medallion for Max and his father.