Como Hal, ele não aparece na DCAU, mas ele foi referenciado direta e indiretamente:
- A police detective in the Justice League episode "The Brave and the Bold" has a passing resemblance to Barry Allen, acting as the "good cop" during the Flash's interrogation.
- In the Justice League Unlimited episode "Flash and Substance", the Wally West Flash mentions his uncle "flying in" to attend the dedication of a Flash Museum.
- There is also another character in the same episode who is Wally's teacher at the forensic lab and bears a resemblance to Barry.
- Wally has many of Barry Allen's story elements, such as his origin, job, city, foes, and status as being the first scarlet speedster and co-founding the Justice League.
- In part 1 of the episode "The Brave and the Bold" when the Flash goes into a comatose state he has some strange dreams; in one he has gained so much weight that he is too fat to run, a homage to the Silver Age issue of The Flash #115, and in another he has a giant head, a nod to another Silver Age comic, The Flash #177.
Você já deve saber que Hal e Barry morreram nos quadrinhos durante o início e a saída do DCAU.