flashallens:

Barry and Iris are receiving another visit from their future offspring — but this time around, it’s their son!

To All the Boys: P.S. I Love You star Jordan Fisher is joining The Flash in the recurring guest-star role of Bart Allen, a.k.a. the speedster Impulse, Barry (Grant Gustin) and Iris’ (Candice Patton) son from the future. His first appearances on the show will coincide with the 150th episode airing later this season.

“Bart is the fastest teenager on the planet,“ according to the official character description. "But due to Bart’s penchant for wildly impulsive behavior, stunned parents Barry and Iris will have their hands full trying to teach their new son patience. But it’s a task they’ll have to accomplish, in order for their family to work together and stop Team Flash’s biggest threat yet!” (X)