The Brain Gremlin is the main antagonist of the sci-fi/comedy movie Gremlins 2: The New Batch, besides Dr. Catheter and Mohawk. Like Stripe, he becomes the leader of a batch of Gremlins, vicious reptilian-skin monsters one meter tall, and with a highly dangerous behavior on attacking any other life form. There are two rules concerning the Gremlins which are water will make them multiply and bright light, especially sunlight, is harmful to them. He was voiced by the late Tony Randall.