Character idea: Obi-Wan (Corrupted) aka Dark Obi-Wan
Name: Obi-Wan (Corrupted)
Affilation: Dark Side
Tags: Unaligned Force-User
Relic Amplifier: Talisman
From the cancelled version of Star Wars: Battlefront III by developer Free Radical Design, in a what-if timeline a version of Obi-Wan was to exist who had been corrupted by the dark side. He appeared older with yellow eyes, and wore Wampa fur, belts and straps made from Krayt Dragons plus various artifacts like talismans, force crystals and bones. Presumably he's also been corrupted by the dark side of the planet Dagobah which is reflected in his garments.
In leaked footage from the trailer (which I've been unable to find but based on sources), Palpatine had been heard giving Obi-Wan orders but it's unknown if he's Palpatine's apprentice or even if he's become Sith.