Susan "Mandark" Astronomanov is the main antagonist in tje cartoon series Dexter's Laboratory. He is Dexter's rival and later mortal nemesis who often seeks to destroy both Dexter and his lab to prove once and for all that he is the superior genius.

Mandark is a character in several fan fictions, having in different backgrounds of the character and so resulting in vastly different characters. Mandark might refer to:

  • Mandark Astronomonov (PPGDS): Mandark, as he appears in the story, GrandMike's Powerpuff Girls Doujinshi.
  • Mandark Astronomonov (Ω Universe): Mandark, as he appears in the story, Powerpuff Girls Ω.

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