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Don Allen is the child of Barry Allen and Iris West-Allen, and the father of Bart Allen. His twin sister is Dawn.

Physical appearance

Don is a Caucasian toddler with short blond hair, and green eyes like his parents. He wears a gray hoodie, light brown shorts, and gray shoes.



Central City
February 28, 12:03 CST

Iris found out she was pregnant in the morning, but decided to hold off telling her husband until the evening, when they'd have privacy, after celebrating the Garricks' wedding anniversary.

The sudden arrival of Impulse spoiled the surprise. However, Iris was shocked to learn she was pregnant with not one child, but two, a boy who was Impulse's father and a girl he referred to as Aunt Dawn.[2]


Central City
September 29, 22:56 CDT

The twins were playing as their mother watched a television report. The doorbell rang and they ran to answer it, but Bart caught them before they could get far. As more guests arrived, Donnie played with the toddlers of the other heroes.[3]

Powers and abilities


Background information

  • In the comics, Don and Dawn Allen, also known as the Tornado Twins, are the children of Barry Allen and Iris West-Allen.


  1. Weisman, Greg (2021-11-10). Question #25274. Ask Greg. Retrieved 2021-11-10.
  2. David, Peter (writer) & Zwyer, Mel (director) (June 2, 2012). "Bloodlines". Young Justice. Season 2. Episode 6. Cartoon Network.
  3. 3.0 3.1 Weisman, Greg (writer) & Heuck, Vinton (director) (January 18, 2019). "Home Fires". Young Justice. Season 3. Episode 9. DC Universe.