Page 359. " I AM AZRAEL "

 Azrael is the traditional name for the Archangel of Death. He is often depicted wearing a black cloak and carrying a scythe.

An artistic depiction of the angel of death
Public DomainAn artistic depiction of the angel of death - Credit: Evelyn De Morgan
Page 365. " That's the Cosmic Megatron "
MP-5 Masterpiece Megatron
Creative Commons AttributionMP-5 Masterpiece Megatron - Credit: jquiz / J Q

 Megatron is the leader of the evil Decepticons in the Transformers series. The toys of the characters are robotic aliens that transform into vehicles. The series has lately been made into two blockbuster movies. Transformers are also mentioned at Warlock's birthday.