The Yogi Bizerk is a henchman for Proteus. He uses a drug that he puts into peoples drinks to make then mindless slaves. The drug wears off but not before having his victims drain their bank accounts or have politicians execute his bidding, in other words, Proteus' bidding. He did confront the Creeper and a couple of times. Once with Proteus' civilian identity. Proteus faked being drugged in order to passively stay out of the confrontation as well as hide his ties with Yogi Bizerk. Yogi Bizerk was killed by another henchman of Proteus when he was about to give the Creeper information on Proteus.
The Creeper was created by Steve Ditko in Beware the Creeper 4.