Raymond Stantz

"He's the techie," Ray assured Harper. "He's a high energy nuclear physicist. Completed his bachelor's degree at MIT by the time he was twelve years old, so he took his grad school nice and slow afterwards and did his doctorates separately instead of concurrently. We've got four guys on our team- according to Dr. Venkman, Egon is the brain, I'm the heart, Dr. Venkman's the mouth, and Winston is the sanity, which unfortunately means he gets outvoted three to one most of the time. But yeah. You should see the things he does with dimensional physics."