- This version of the character is exclusive to the continuity of the television series Young Justice and its tie-in comic book series. It is an adaptation of Gregor Markov. The original character was created by Mike W. Barr and Jim Aparo and first appeared in Batman and the Outsiders #1.
- Gregor Markov is voiced by Crispin Freeman.
- 9 Appearances of Gregor Markov (Earth-16)
- 1 Images featuring Gregor Markov (Earth-16)
- Quotations by or about Gregor Markov (Earth-16)
- Character Gallery: Gregor Markov (Earth-16)
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