Bjorn San Juan Wiki

Doctor Murder (French: Docteur Macabre, lit. "Doctor Macabre"; Marquis Gustave-François de Merteuil) is an ancient villain who time travels back in time to kill John Smith through his dark magic. He was originally appeared as a bully who have murdered a series of people.

He has also many aliases: Marquis du Macabre, a 15th-century French alchemist; Sir Augustus Hargreaves, an English melodramatic thief; Dr. Gustave Hargreaves, a present-day mad scientist; and lastly, as the Tower Dragon, a gigantic fire-breathing dragon modelled after the Legendary Godzilla that Sir John the Great killed him before.


Coming soon......

Henchmen and monsters[]


  • Abercrombie
  • Charmander (modelled after Kamoebas)
  • Hellhounds
  • Long-necked Dragon

  • Sea Dragon <small>(modelled after Gezora)<small>
  • Sea Giant
  • Three-headed dragon
  • Tower Dragon (Doctor Murder's final boss monster form since he was often killed by Sir John the Great)
  • Tower Giant

Powers and abilities[]

  • Telepathy
  • Teleportation
  • Shapeshifting
  • Superhuman strength
  • Immortality
  • Regeneration
  • Weather manipulation
  • Manipulating creatures via dark magic (demons, giant monsters, henchmen and magical creatures)


First series[]

Coming soon......

Character concept and design[]

° According to Bjorn San Juan, that the concept for Doctor Murder will be like the villain from some classic time-travel films. In its early concept, it will be like the Bowler Hat Guy from Meet the Robinsons.

° In his alternate version in the third series, he was wearing an exoskeletal armor similar to Ronan the Accuser from the 2014 film Guardians of the Galaxy.

° His name Marquis Gustave-François de Merteuil was named in the honor of Kathryn Merteuil, the main villainess from the 1999 romantic melodrama film Cruel Intentions.

In popular culture[]

  • In the American television series Summertime, a villain resembling Doctor Murder, also known as Erasmus Zero. He was wearing a futuristic-looking costume similar to Marquis de Macabre's outfit in the comics.