History of character has not yet been written.
- This version of the character is exclusive to the continuity of the DC Animated Universe and is an adaptation of Cosmic Boy. The original character was created by Otto Binder and Al Plastino and first appeared in Adventure Comics #247.
- Cosmic Boy was voiced by Chad Lowe.
- 7 Appearances of Rokk Krinn (DCAU)
- 4 Images featuring Rokk Krinn (DCAU)
- Quotations by or about Rokk Krinn (DCAU)
- Character Gallery: Rokk Krinn (DCAU)
Legion of Super-Heroes member