Jack Ryder, also known as Creeper, is a superhero that has appeared in various media. In fanon media created by 900bv, he appears in the comic Objections! and the video game Batman: Altor's Demise.
Batman: Altor's Demise
In Batman: Altor's Demise he appears as both Jack Ryder and Creeper in the side mission Knight Rhymes to be an advisor and also fighter in the battles.