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|As a result of the DC Rebirth in 2016, the entire line of Legion of Super-Heroes characters was rebooted (again) in 2019. As such, elements of this character's history have been altered in some way from the previous incarnation. For a complete list of all versions of this character, see our disambiguation page.|
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- Braalian Physiology Physiology
- Cosmic Boy was created by Otto Binder and Al Plastino, first appearing in Adventure Comics #247. However, in the Post-Rebirth Legion of Super-Heroes continuity Cosmic Boy first appeared in Superman (Volume 5) #14 by Brian Michael Bendis and Ivan Reis.
- 11 Appearances of Rokk Krinn (Post-Rebirth)
- 5 Images featuring Rokk Krinn (Post-Rebirth)
- Quotations by or about Rokk Krinn (Post-Rebirth)
- Character Gallery: Rokk Krinn (Post-Rebirth)
Legion of Super-Heroes member