|First Appearance||"Back Issues"|
|Last Appearance||"Future Issues"|
|Portrayed By||David Spade|
He is sometimes simply referred to as "Finch".
Born in Albany, New York (of Norwegian ancestry), Dennis attended Hudson River Junior College where he joined the cheerleading team.
In general, Finch has been described as “a self-centered horny pig who’d stop at nothing to get laid.” He is discovered to be well-endowed but does not realize this until Jack and Elliot bring it to his attention; they react with disgust when Finch says he always believed he was merely "a little above average." Surreptitiously, Dennis writes articles for the “Dear Miss Pretty” advice column. Dennis used to compete in figure skating, as revealed in the season 3 episode, 'Softball'. Dennis also likes to collect action figures and ceramic kittens. He lives in an apartment, number 803, in New York City. He is also known to have a fear of owls from his mother's side. He works as the executive assistant of Blush owner Jack Gallo, toward whom he has a slavish devotion (he once claimed he expected to be buried with Jack) and with whom he has a virtually telepathic rapport, enabling him to foresee Gallo's every need and provide answers to even his vaguest questions (i.e. "What's that song that I like?"). He also has a seemingly mystical ability to tell when something sexual is happening or even being mentioned; for example, he was able to figure out that Maya and Elliot were in a relationship simply by mentally comparing Elliot's bite mark on an apple he was eating with a hickey on Maya's neck, as well as seemingly appearing to cross a massive distance across countries to appear in a room just as Maya was propositioned by a photographer. In season three, he marries a supermodel and in Season 4, the supermodel, Adrienne asks for a divorce. Highly intelligent, as a child he was able to hack into a German bank and steal $18,000 worth of Deustche Mark as disclosed in season 3; he also reveals in the season 2 episode "Jack's Old Partner" that he is so adept at twisting tax laws to favor him that the previous year, the IRS paid him 20 thousand dollars not to grow corn. In Season 6 episodes 2 and 3, it is discovered that his entire personality is stolen from a girl he saw at college on his first day at the freshmen mixer betsy franey (Amy seides). When she endes up working at a security guard for blush the truth of this comes out.