Atom (Ryan Choi)

The Atom
Ryan Choi as Atom as depicted in The All New Atom #4 (December 2006). Art by Eddy Barrows.
Publication information
PublisherDC Comics
First appearanceDCU: Brave New World #1 (August 2006)
Created byGail Simone
Grant Morrison
In-story information
Alter egoDr. Ryan Choi
SpeciesHuman
Team affiliationsJustice League
Teen Titans
Justice Foundation
Notable aliasesLun Lun
Abilities
  • Size and mass alteration via belt
  • Genius-level intellect
  • Combat experience

The Atom (Dr. Ryan Choi) is a superhero appearing in American comic books published by DC Comics. Created by Gail Simone and Grant Morrison, the character first appeared in DCU: Brave New World #1 (August 2006) as the third superhero character to use the Atom name in the DC Universe. He emigrated to the United States following the death of his mother, to take up his idol Ray Palmer's former position at Ivy University. He went on to become a member of the Justice League.

In the DC Extended Universe film Justice League (2017), Ryan Choi was portrayed by Zheng Kai, but his scenes were cut from the theatrical version. His appearance was restored for the 2021 director's cut of the film, Zack Snyder's Justice League. Osric Chau portrayed Ryan Choi in the Arrowverse crossover "Crisis on Infinite Earths" and The Flash's eighth season.