He studied at the South Australian Centre for the Performing Arts before making his break into television as a member of the Big Bitesketch comedy show and then became a regular presenter on Foxtel's The Comedy Channel. His sister, Nikki Dwyer, is a former newsreader for Network Ten in Adelaide. In 2006, he became the host of the Australian made stand upTV show, Stand Up Australia, shown 5 nights a week on The Comedy Channel. He has also hosted a variety of different shows on Foxtel, namely Chain Reaction on Fox 8, We'll Call You on The Comedy Channel and also the second series of Hit & Run on The Comedy Channel. In 2007, Knight was the host of the Australia heat of season 5 which aired on Fox8 and received an ASTRA Award nomination for Best Male Presenter in 2008. A keen singer, Knight was a founding member of Sydney-based singing group, 2016 was a big year for Knight following up a huge 2015. Receiving a 4.5 star review for his comedy solo – Almost Bulletproof, (backing up a highly coveted 5 star review of his previous show – 100 Percenter. Both shows gained national Comedy festival runs of sold out performances and nominations for Best Comedy Show in the 2014 and 2015 Perth Fringe. These were also performed to sell out encore performances at The Sydney Comedy Store. Knight has featured at the televised Montreal Just For Laughs Showcase at the Sydney Opera House at the end of 2015 as well as the televised Sydney Comedy Festival Gala on the Comedy Channel in 2014. His recent television credits include ABC's Backseat Drivers; being called back for multiple episodes, Soul Mates and Soul Mates 2 playing the notorious character, Dan Bingle and was also cast in the ABC series How Not to Behave in 2015 and was seen on the sketch series on ABC, Wham Bam Thankyou Ma'am. Knight has regularly appeared on Today and has co hosted the morning show, Studio 10 on Channel 10. As well as all that he has lapped the country with huge theatre shows, comedy clubs, comedy fringe festivals, corporate comedy and musical performances such as Splendor in the Grass and Rottofest on Rottnest Island. In 2016, Knight was the co-host of the Channel 9 show Unreal Estate with Kate Langbroek.