Mark's original appearance has not been shown. His appearance at present takes on M-24.
Mark is revealed as rather calm, cold and serious in his manner, even towards his teammates from the Assassination Squad.
Mark is first shown as M-24 escaping from a laboratory. However, this is revealed to be a disguise as his true allegiance lies with Dr. Crombel. He infiltrated Frankenstein's Residence with the goal of acquiring data from the laboratory which will help Dr. Crombel in his own experiments.
Powers & Abilities
Mark has remarkable enhanced physical strength as displayed during his battle with M-21. His speed is also superior to that of the then M-21 (partially transformed).
Mark has exceptional skill at impersonating out others. He adopts not only the appearance of his target but almost every other possible characteristic, such as behavior, personality, voice, and their abilities in order to make perfect infiltration possible. If necessary, memories can be temporarily blocked. It depends on the cells which are absorbed from the target's body to replicate them and their abilities. Mark has assumed M-24's identity by imbibing considerable amount of M-24's brain and body cells in order to fulfill his mission of infiltrating Frankenstein's Residence. The disguise is taken to such an extreme extent that Mark even forgets his real identity as well as suffering from the similar pain M-24 used to suffer for his unstable condition. Once having entered that stage, he can only be awakened when his life is put in danger. Even Yuri is jealous of such flawless disguise.
|Rai's Group||Rai · Frankenstein · M-21 · Tao · Takeo · Shinwoo · Ik-Han · Yuna · Suyi|
|Nobles||Raskreia · The Previous Lord · Gejutel · Karias · Krasis · Kei · Ludis · Rael · Ragar · Rajak · Regis · Rozaria · Seira · Claudia · Edian · Gradeus · Ignes · Lagus · Roctis · Urokai · Zarga|
|Werewolves||Muzaka · Maduke · Lunark · Kentas · Ashlyn · Garda · Dorant · Juraki · Grui · Gaitan· Kuharu · Mount · Drakon · Kaiyo · Gayare · Mirai · Urne · Uzhir · Gorma · Krano · Braang · Zaiga · Gaura · Gotaru · Bashum|
|Union Elders||1st Elder · Maduke · 3rd Elder · Roctis ·Lunark · Urokai · Zarga · 8th Elder · 9th Elder · Rostere · Muar · 12th Elder · Dr. Crombel|
|Union Agents & Members||Dr. Aris · Bonerre · Geo · Hammer · Haydn · Ignes · Infected · Jake · Kalvin · Ked · Krantz · Lutai · Mark · Mary · Rodin · Shark · Taze · Yuizi · Yuri|
|KSA||Lim Taesik · Sangeen · Yonsu|