Universo is a hypnotist and enemy of the Legion of Super-Heroes who makes several attempts to conquer Earth using his abilities.[2][3][4][5] He is later revealed to be a former Green Lantern who was banished from the group after attempting to view the beginning of time.[6][7]
"Five Years Later"
Years later, the Dominators seize control of Earth, during which Universo works with the Legion to stop them. After Earth is liberated, Universo allies with Leland McCauley.
Post-Zero Hour
Following Zero Hour: Crisis in Time!, which reboots the Legion's continuity, Universo is depicted as Sarmon Ardeen, Saturn Girl's cousin. This version of Universo is erased from continuity following Infinite Crisis, which further alters DC's timeline.[8]
The New 52
In The New 52, Universo disguises himself as president-elect Hiroshi Takaneda. After a precognitive terrorist attempts an assassination, he hypnotizes Saturn Girl into missing his true identity. It is revealed that within nine years, the United Planets will fall apart under the villain's tyrannic rule.[9]
Other versions
Universo appears in the one-shot Batman '66 Meets the Legion of Super-Heroes. This version is the descendant of Egghead.