Mephiles the Dark

Mephiles the Dark is a fictional character and antagonist in the Sonic the Hedgehog video game series, first appearing as one of the main antagonists in the 2006 video game. He is the malevolent conscience, mind and will of the sun god Solaris. Mephiles was born during the Solaris Project when the experiments on Solaris split him into Mephiles and Iblis. After his birth, Mephiles was sealed inside the Scepter of Darkness by Shadow the Hedgehog (who traveled back in time using Chaos Control) but was freed ten years later during a skirmish between Shadow, Rouge the Bat, and Dr. Eggman.

Canon

 * Dan Green

Fanon

 * Joaquin Phoenix (James Cameron's Sonic Cinematic Universe; voice and motion capture)
 * Matthew Mercer (Marvel's All-Star Multiverse)

Iago PUC

 * Mephiles appears in James Cameron's Sonic Cinematic Universe, voiced and motion captured by Joaquin Phoenix. He served as the main antagonist in Silver and Blaze, and was mentioned several times in HBO Max's animated miniseries Jackal Squad.
 * Mephiles appears in the Disney+ crossover animated miniseries Marvel's All-Star Multiverse, voiced by Matthew Mercer. This version is depicted as the fallen Mobian god of the Underworld, and the evil twin brother of Solaris who sought to usurp him, and bring darkness to his universe until he was defeated by the Freedom Fighters, and banished to all eternity into the Void. He appears as one of the dark lords (along with Knull, Emperor Palpatine, Unicron, and Za-Naron) whose spirits are summoned by Thane after the Multiverse Star is unlocked. Mephiles and the dark lords entrust Thane with the task to destroy the "light in the Multiverse".