Cuphead

Cuphead is a member of the Guardians of New York

Involvement in Story
Cuphead and his brother Mugman flew into Wakanda during the Thanos event to help fight Thanos' forces there. Mugman was killed in the snap, but Cuphead survived.

Months after the event, Cuphead decided to join Strange's team when he saw an opening. He went and tried out and was accepted. Since then nothing major has happened with him.