Jason Marnocha established himself as a prominent voice actor and producer with his distinctive vocal range, notably voicing Megatron in the animated series Transformers: Combiner Wars in 2016. The same year, he contributed to popular anime, portraying Keicho Nijimura in JoJo’s Bizarre Adventure. Demonstrating his diverse involvement in media production, Marnocha also served as a sound engineer and producer for Frontier-0 from 2017 to 2018, showcasing his comprehensive understanding of the production pipeline. His early work quickly cemented his reputation for versatile performances across various platforms.
From 2023 to 2024, he contributed to My Adventures with Superman as Jor-El, Agent Ethan Avery, and Damage, further showcasing his range. In 2024, he added the role of Gosha in Beastars. His contributions to the gaming world have also continued in 2024 with roles in Dead Rising Deluxe Remaster, as Hierophant and Garon in Romancing SaGa 2: Revenge of the Seven, and in Shin Megami Tensei V: Vengeance. Marnocha’s strong demand in the industry is reflected in his extensive upcoming pipeline, with numerous projects slated for release.
In 2024, he is set to voice Declan Vera in Cabin Tales. Looking ahead to 2025, his roles include Knuckleduster in My Hero Academia: Vigilantes, D, Master Engineer in The Beast, Bernhardt, Arven, and Additional Voices in Lost Eidolons: Veil of the Witch, and Scarecrow in A Gotham Nightmare. Other 2025 projects include Willy in Double Dragon Revive, Superhero Show Director in Witch Watch, Ken in The Gaslight District, Civilian, Predator Demon, and Cavaliere in Devil May Cry, and Owner of Shin-Sekai and Shinpei Nakamura in Raidou Remastered: The Mystery of the Soulless Army. He is also slated to voice Morriah and Captain Ironfang in the upcoming title The Legend of Maya.