Semi-serrious sarcastic horndog, it is suffice to say he takes after his dad rather heavily. He has no moral qualms about using his psychological prowess to tell people exactly what they want to hear to get what he wants.
Brief personal history:
He's been surrounded by paranormal since an early age, his mother was the gatekeeper for Zuul before he was conceived and he himself was almost the avatar for Vigo the Carpathian as an infant. His mother has always tried to keep him away from ghosts or any other paranormal activity, but he himself has always been drawn towards the taboo she tries to shield him from. He would spend summers with his dad Peter and eventually fell into the same interest of the psychology and parapsychology that he had degrees in. Due to a promise to Dana, Peter has never told Oscar about any of the 'war stories' from the eighties no matter what he has been pleaded or bribed with. Right now he is going through the motions of college at Empire State University to get his degrees since there is no way to get a BA like a GED. Then he saw the ad and knew he had found a better way to spend his nights than blacking out in someone else's bed. IF his dad wouldnt tell him about being a ghost buster then he would find out about it himself.
Any experience/skills that might be useful in the ghostbusters:
Equivalent degrees in psychology and parapsychology from years of following in his 'fathers' footsteps.