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[XS Flying - Impulse 9]
Real Name: Jenni Ognats
Known Relatives: Barry Allen (grandfather), Iris West Allen (grandmother), Dawn Allen (mother), Jeven Ognats (father), Don Allen (uncle), Bart Allen (cousin)
Group Affiliation: Legion of Super-Heroes
Base of Operations: 30th Century
Origin: c. 2990 (born 2978) but see note on time shift
First Appearance: Legionnaires #0, November 1994

Jenni inherits her speed from her grandfather, Barry Allen. Born on Aarok, Jenni grew up with no super-speed. After her mother and uncle died freeing hostages from the Dominators, making them aware of her family’s history, they kidnapped her and her father in an effort to tap her abilities. Disappointed that she had none, they began torturing her father—the sight of which activated Jenni’s latent powers. She rescued her father, and later checked herself into a research lab to learn to control her powers. Eventually, she was drafted into the Legion of Super-Heroes.

In addition to her speed, Jenni also wears a Legion flight ring that enables her to fly. One adventure left her stranded in the 20th Century, where she played a small but crucial role in the defeat of Savitar. She briefly met her grandfather during the trip back to her own time.

The 31st century was “recently” altered again. It has not yet been revealed whether XS still exists in this new future. The Justice Society’s Starman remembers her, but he remembers several different timelines.

Text by Kelson Vibber. Do not copy without permission.

Top of Page Art

  • Impulse #9 (December 1995) - Humberto Ramos and Wayne Faucher

Origin Tales

  • Legion of Super-Heroes Annual #6 (1995): “Running Scared,” Tom McCraw


  • Legion: Secret Files #1 (January 1998)
  • The DC Comics Encyclopedia (2004)

Significant Flash/Impulse Appearances

  • Impulse #9 (December 1995): “Running in the Family,” Mark Waid
  • Flash #108–111, Impulse #10–11 (December 1995–March 1996): “Dead Heat,” Mark Waid
  • Impulse #12 (March 1996): “Sonic Youth,” Mark Waid
  • Flash #112 (April 1996): “Future Perfect,” Mark Waid
  • Legionnaires Annual 3 (1996): “The Long Road Home,” Roger Stern
  • Flash #148–149 (May–June 1999): “Chain Lightning Parts 4–5,” Mark Waid and Brian Augustyn
  • Flash 80-Page Giant #2 (April 1999): “A Flash of Hope,” Tom Peyer
  • Titans/Legion of Super-Heroes: Universe Ablaze (2000), Dan Jurgens
  • Teen Titans/Legion Special (November 2004): “Superboy and the Legion, Part Two,” Mark Waid & Geoff Johns

Series Regular In...

  • Legion of Super-Heroes (1994–1999)
  • Legionnaires (1994–1999)
  • The Legion (2001–2004)


* Note on Dates: The Legion of Super-Heroes stories essentially take place 1,000 years in the future. Unfortunately, this means that those stories suffer from the same “time shifting” that the present does: a story printed in 1996 would take place in 2996 with an 18-year-old character... but a story printed in 2002 would take place in 3002, and I doubt the Legionnaires have aged six years in that time.

Additional background on XS and the Allen Twins from The Encyclopędia Galactica (which has since disappeared).

The Flash Companion The Flash Companion
Preview at Speed Force
Order at TwoMorrows