He also portrayed Waj in the comedy film Four Lions (2010), the vampire Nandor the Relentless in the mockumentary series What We Do in the Shadows (2019–2024), and Fabian Kingsworth in the twelfth, thirteenth and fourteenth seasons of Archer (2021–2023).

[5] Novak initially appeared on various British shows, including Family Affairs, Holby City, and Spooks.

In 2005, he and Ed Tracy created Fonejacker, a prank call show as part of Channel 4's Comedy Lab strand.

In November 2009, he appeared on the Channel 4 show The Increasingly Poor Decisions of Todd Margaret, playing a bomb-disposal officer.

[3] Novak filmed a scene for This Is England '86 which was cut from the final broadcast, but appears in the DVD extras.

He has provided voice work for three video games: Wallace & Gromit: The Curse of the Were-Rabbit, Perfect Dark Zero and Kameo.

He also voiced various characters in the ITV spoof sketch show Headcases, and in the 2012 Channel 4 animated series Full English.

[17][18] In 2019, Novak was cast as the vampire Nandor The Relentless in the mockumentary comedy horror television series What We Do In The Shadows.