Despite not being an initial member of his friends' comedy troupe The Tenderloins, after one of the original members, Mike Boccio, left the group in 2006, Quinn became the troupe's fourth member. The Tenderloins began producing comedy sketches together, posting them on YouTube, MySpace, and Metacafe, accumulating millions of views online. In 2007, the troupe won the $100,000 grand prize in the NBC It's Your Show competition for the sketch "Time Thugs".
''Impractical Jokers'' and other television shows
Impractical Jokers premiered on December 15, 2011 on TruTV. The first season was watched by over 32 million viewers. The show quickly became the most popular series on TruTV and has boosted Quinn into the public eye. In 2019, Quinn, along with the other members of The Tenderloins, starred in The Misery Index, which is hosted by Jameela Jamil and is based on Andy Breckman's card game "Shit Happens". was released on February 21, 2020.
What Say You?, an occasional podcast hosted by Sal Vulcano and Quinn, was named Best New Show at the 2013 Stitcher Awards. The increased popularity of What Say You sparked a friendly competition among the comedians, spurring Joe Gatto and James Murray to release their own Tenderloins podcast without the other two members. In 2015, What Say You? was nominated for the Comedy, Entertainment, and Best Produced Podcast Awards at the 10th Annual Podcast Awards. Vulcano and Quinn have stated that the podcast is their own side project, not a replacement of The Tenderloins Podcast. The group explained that it was difficult to coordinate the schedules of all four members outside of work, making it challenging to produce their troupe's official podcast with any regularity.
''Tell 'Em Steve-Dave''
Q is also a part of the podcast Tell 'Em Steve-Dave!, which he co-hosts with Bryan Johnson and Walt Flanagan. The podcast started in February 2010 with Quinn in the role of the off-mic audio engineer, then shortly after as occasional commentator and ultimately co-host.
Personal life
Quinn suffers from arachnophobia. He has a cat named Benjamin. Quinn suffers from depression and has been very open about his struggles throughout the years. While taking a trip to Germany in 2009, Quinn was arrested for disorderly conduct while visiting the Oktoberfest. Another guy started a fight, punched him in the face, knocking his tooth out. Quinn was escorted back to America by German police and was bailed out by his Tenderloins troupe members. Since his time on Impractical Jokers, Quinn has donated $50,000 to the New YorkCity Fire Department and he occasionally meets with his former coworkers. In 2019, Quinn revived the Rubsam & Horrmann Brewing Company on Staten Island.