He is known for his roles in Akudama Drive as Bunny & Vivienne Medrano's series Hazbin Hotel, providing the voice for Angel Dust in the pilot only. He also voices Rich, Playtime Co.'s chief scientist, and Experiment 1006/The Prototype in Poppy Playtime, as well as Kai and Splitter in Hex.
Kovach previously worked with Elsie Lovelock and Nola Klop in Poppy Playtime, albeit he and Lovelock also worked on Hazbin Hotel together. All three are also known for their singing talents as well.
Kovach, Lovelock, and Klop have also worked alongside Alex Rochon in ZAMination's Minecraft-styled parody series Fazbear & Friends, which regularly crosses over all FNAF games with Bendy and the Ink Machine, Baldi's Basics, Among Us, Friday Night Funkin', Squid Game, Minecraft proper, and Poppy Playtime (which is made by ZAM's parent company MOB Entertainment), much like the SMG4 series has done spoofs of every aforementioned property.
While Kovach provides the voices for SMG0 and Niles by themselves, Luke and Kevin Lerdwichagul voice Eldritch SMG0 and Eldritch Ax0l (Luke as his true form and Kevin while possessing Axol).
