Jake Pollen was a student at Smallville High School and a metahuman with the ability to breathe underwater through gills. He was the secondary antagonist in the Season 3 episode "Extinction" of Smallville
He was portrayed by Harris Allan.
Jake was best friends with Van McNulty for three years, but Van did not know about Jake's metahuman abilities. At the beginning of the school year, Van teased his friend Jake for admiring Lana Lang from afar. Jake approached Lana as she was leaving in her car and said hello to her with Lana only returning the politely greeting back and drove off leaving him in the parking lot.
While Lana was swimming after hours in the school pool, Jake inexplicably grabbed Lana's ankle and appeared to be drowning her. Lana puts up a good fight, but Jake can breathe underwater and he holds her down until she almost drowns. Suddenly, a mystery shooter kills the boy shooting Jake in the head with a sniper rifle. Lana was saved in the process and disappears. At the bottom of the pool is a meteor rock with the word "freak" scratched onto it that was thrown in.
After his death, Chloe launched an investigation into Jake's past and to learn the identity of the mysterious shooter. Chloe found photos from Jake's autopsy showing that he had gills. Lana expressed disgust while Clark remarks that the bullet wound was more disturbing. It was revealed that Van McNulty had killed Jake because he was a metahuman ignoring the fact that they had been close friends. It appeared that Van was being a hero until it was revealed that he was hunting down people infected by Kryptonite.