Morgan Brunner is the old sister of Molly Brunner and a friend of Danny from school. She and her sister worry about Danny since a car accident that caused the death of his parents and girlfriend. Even though she knew Danny’s secret, she tried to defend him from attacking his patient. But then, she and her sister were banished with Danny to Equestria. She and Molly get along with each other so well even though they both share the same dream and experience as friends. She also supports Danny for anything he may have experienced, such as nightmares and visions.

She is guardian-like, wise, and sometimes sarcastic and anxious.