Don Allen's twin sister. Dawn is the daughter of Barry Allen and Iris West-Allen, and the mother of the Legionnaire XS. Together, she and her twin brother Don were known as the Tornado Twins.

Dawn Allen

Don Allen's twin sister. Dawn is the daughter of Barry Allen and Iris West-Allen, and the mother of the Legionnaire XS. Together, she and her twin brother Don were known as the Tornado Twins.

All data from the awesome folks at Marvel.