Mary Marvel Garland. Mary was introduced in "Captain Marvel Adventures" #18 as Mary Bromfield, a girl who discovers she is the long lost sister of Captain Marvel's alter ego Billy Batson. Soon after her introduction, Mary Marvel headlined "Wow Comics", and by 1945 had her own "Mary Marvel" book. She also appeared in "The Marvel Family" book with Captain Marvel and Captain Marvel Jr. In her solo adventures, Mary soon gained sidekicks in her kindly Uncle Marvel, who was not actually her uncle nor a Marvel, and his similarly nonpowered niece, Freckles Marvel. Uncle Marvel was eventually made the Marvel Family’s manager,
Alter ego Alter ego An alter ego (Latin for "other self") is a second self, which is believed to be distinct from a person's normal or true original personality. A person who has an alter ego is said to lead a double life. The term appeared in common usage in the early 19th century when dissociative identity disorder was first described by psychologists. Cicero coined the term as part of his philosophical construct in 1st-century Rome, but he described it as "a second self, a trusted friend". A distinct meaning of "alter ego" is found in literary analysis used when referring to