Arleil Schous was an aging Defelmale. Like all Defels, he had the ability to bend light around himself, becoming especially hard to see at dusk, though his ability to do this had diminished with age.
His famous scene when his eyes glow red in the dark was replaced by Melas, due to George Lucas' wish. However, Arleil may still be seen in the background behind Hem Dazon's introductory shot. "Arleil Schous" is an anagram of Charles Louis (Kallenbach), a Decipher employee. The character's mask was previously used for the obscure 1974 Halloween live show "In the Attic", with Rick Baker in the costume.