Leon is a mercenary and close quarters combat (CQC) martial artist from the Dead or Alive series. He first debuted in Dead or Alive 2, and shares many similarities and a history with Bayman.<br>
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Leon entered the Dead or Alive Tournaments to prove that he was the strongest man in the world, to live up to the final words of his deceased lover, Lauren. He stopped entering the tournaments after Dead or Alive 3. 

Dead or Alive 2 Comic Anthology is the first installment in the Japan-exclusive Dead or Alive anthology comic series published by DNA Media Comics. The comic is a series of short stories featuring the cast of Dead or Alive 2, each illustrated by different manga artists.<br>
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(Source: Dead or Alive Wiki)