History of character is unknown.
- This version of the character is exclusive to the continuity of the DC Animated Universe and is an adaptation of Rokk Krinn/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.
- 6 Appearances of Rokk Krinn (DCAU)
- 4 Images featuring Rokk Krinn (DCAU)
- Quotations by or about Rokk Krinn (DCAU)
- Character Gallery: Rokk Krinn (DCAU)