Katharyn began doing stand up comedy in New York City where she worked her way to regularly hosting and performing nightly throughout the five boroughs. She has been seen regularly at venues including but not limited to New York Comedy Club, Gotham Comedy Club, Broadway Comedy Club, The Stand, and The Comic Strip as well as countless backs of bars, windowless basements, rooftops, and bathroom stalls. Currently based in London, Katharyn MC's and performs regularly at Top Secret Comedy Club, Vauxhall Comedy Club, Up the Creek among other clubs, dives, and holes-in-the-wall throughout the UK. Outside of stand up, Katharyn co-hosts the podcast "This American Irish Life" with husband and fellow comedian Mark O'Keeffe.
Katharyn has performed in multiple Edinburgh Fringe's receiving excellent critical review for both her performance and her debut hour "Ew Girl, you Nasty." Kate Copstick of The Scotsman exclaimed, “This show is a blast!" The Skinny awarded her **** and Pop Dust noted that "you won't see many comics like her at the Fringe or anywhere else." Chortle stated that Katharyn is "a confident, appealing presence with a backstory that makes her unique and interesting." She has hosted a show in the New York Comedy Festival three years running and formerly produced two weekly shows in New York City which she headlined.
In March 2020, Katharyn performed at the Adelaide Comedy Festival and was slated to perform at both the Melbourne International Comedy Festival Sydney Comedy Festivals but instead there was a global pandemic. Other past projects include co-hosting "Somewhat Scientific" with Meghan Walsh and, prior to moving to London, co-hosting "Yikes Yikes Baby" with Misha Han and Mike Suarez which recorded at Riot Cast above the Comedy Cellar.
Thought you had a tumultuous pandemic? Wait until you read this!