Comedian Guy Montgomery was born and raised in Christchurch and went on to study at Victoria University of Wellington. He moved to Canada in 2010 to start his comedy career. He then returned home (partly to co-host Late U) before moving to New York City. Together with Tim Blatt, Guy is co-host of the podcasts Worst Idea of All Time, Friendzone, and 'Til Death Do Us Blart.

Guy won the Billy T Award in 2014 and the Fred Award at the New Zealand International Comedy Festival in 2023.

He has written for several New Zealand comedy shows, such as Jono and Ben at 10, and has appeared on Comedy Central US. In 2021, he took part in Taskmaster NZ, and in 2022 was a contestant on New Zealand's Celebrity Treasure Island. He has also appeared frequently on shows such as 7 Days, Have You Been Paying Attention?, and Thank God You're Here. Last year, his television show Guy Montgomery's Guy Mont-Spelling Bee premiered.

Guy will return to the live stage this year with his new show, Over 50,000,000 Guy Fans Can't Be Wrong.