Board Thread:Questions and Answers/@comment-1038387-20140227111018/@comment-1639863-20140419141537

Roman Sionis isn't really known for having a partner-in-crime, but, in one specific continuity, he actually has a head henchman who sorta acts like his sidekick, despite being easily replaced. Name the continuity and the alias of the sidekick.

(Hint: I don't believe we have a page for the sidekick, but he's referenced on the corresponding Black Mask page. Also, if you find a sidekick that fits the criteria that I didn't think of, you still get the answer.)