Ridley

Ridley is the most-recurring villain of the Metroid series, having debuted in the original game and making consistent reappearances since. He led the Space Pirate attack and personally killed both of Samus' parents when she was a child, inadvertently creating his greatest nemesis. Ridley's full history is unknown, but what is known is that he hails from Zebes and is a very high-ranking Space Pirate commander. He is cruel and sadistic, taking great pleasure in tormenting his victims before violently executing them. Despite his bestial appearance he is highly intelligent and speaks coherently in the Metroid manga.

Ridley is a favourite of the MCD, often appearing as a popular topic and the subject of memes. However he was infamously blamed and chastised by former user The Fifth for "ruining" Metroid in his eyes.