Morgan is the uncle of Pepper Potts.
Morgan got acquainted with Tony Stark, the fiancé of his niece Pepper Potts, and his eccentric attitude left an impression on Stark. Stark later had a dream where he and Potts had a child together, whom they named Morgan in honor of her uncle. As the years went by, Potts and Stark had a daughter, whom they indeed named Morgan, after him.
- In the comics, Morgan Stark was the first-cousin of Tony Stark, who schemed repeatedly against him in order to take his place as the leader of Stark Industries.