Gene Belcher is one of the main protagonists and the middle child of Bob and Linda Belcher of Bob's Burgers. He is the only boy out of the three siblings. Gene is an aspiring keyboardist and a prankster. He maintains very close relationships with both of his parents and two sisters, Tina and Louise Belcher. Gene, along with Tina, is usually a pawn in schemes set up by Louise. He attends Wagstaff School with his siblings. He also serves as a major character in The Bob's Burgers Movie.
He was voiced by Eugene Mirman.
Like Linda, Gene has an upbeat and enthusiastic attitude about almost everything; however, he closely resembles Bob and has inherited his lobster allergy. He often promotes the restaurant by wearing a burger costume, which he uses to run in a mascot race in the season 1 episode "Torpedo" and using a toy megaphone to hand out samples. In "It Snakes a Village", it is shown that he suffers from ophidiophobia. Gene has a variety of interests and hobbies, with his most well-known being food and music. Though he has no training, he occasionally demonstrates great skill in music and aspires to be a musician; he enjoys playing a Casio-type keyboard and makes fart sounds using it and creates an elaborate love duet in "Topsy" as well as a one-man show in "Work Hard or Die Trying, Girl." Despite this, Gene is not without his flaws, namely a tendency to be easily distracted, which the family refers to as "Gene-ing out" in "Best Burger", but he is loving and loyal toward his family.
Like his father and mother, Gene has swarvy olive skin and dark black hair. He has his hair in a short "bowl cut" with long flips at each side of his head. He sports a pale-yellow, almost-beige, short-sleeved t-shirt; a pair of slightly-lengthy light-blue denim shorts; short white socks; and, like his older sister, white and red sneakers.