Jacob Lesiuk is a Canadian voice actor based in Calgary, Alberta, with a professional career in voice-over that began around 2014. He holds a Theatre Performance Diploma from Mount Royal University, which provided a foundation for his work in both on-camera and voice acting. His voice-over repertoire includes animation, video games, and audiobooks.

In the field of anime, Lesiuk is known for his contributions to the English dubs of several series. He voices the character Tonori Fujinami in the Cardfight!! Vanguard: Shinemon Arc, appearing in 24 episodes of the show. His work within the Cardfight!! Vanguard franchise also includes voicing minor characters such as Red River Dragoon, Thunderstorm Dragoon, and a student in the 2018 Cardfight!! Vanguard television series. Beyond this franchise, he provided voices for the anime World Trigger in its third season, taking on the roles of Rokuro Wakamura and Toru Narasaka.

As a voice actor, Lesiuk is noted for his vocal versatility. He is proficient in a range of accents, including various North American and British dialects, and can perform in voice ages spanning from teen to middle-aged. He is also a content creator and producer for the audio drama podcast The Hand of Brass, demonstrating his skills in both voice performance and sound post-production. In addition to his entertainment career, he has worked in the finance sector since 2022.