Spencer Liles is an American voice actor, ADR engineer, and animator based in Fort Worth, Texas, known for his work in English dubs of anime series. His career in media began during his time at the University of North Texas, where he studied Music Composition and Radio, Television, and Film, graduating in 2018. While a student, he worked as a radio DJ for KNTU FM 88.1 THE ONE.

Following his education, Liles gained experience as an actor, animator, ADR engineer, and Foley artist at Sonny Strait Studios. It was there he met Jason Lord, with whom he co-founded Extra Terrible Studios LLC. At this studio, he continues to work in multiple capacities, including as an actor, animator, director, sound engineer, and studio musician. Beyond his voice work, his technical skills in sound have been utilized as an ADR Engineer on series such as Songs Connection, Assault Lily Bouquet, and Kaguya-sama: Love is War.

Liles has built a substantial career as a voice actor, securing roles in numerous English dub productions for clients including Crunchyroll and HBO. He is widely recognized for his portrayal of Zhuo Yi in the long-running dongua series Daily Life of the Immortal King, a role he has voiced from its early episodes through to the fifth season. Another prominent and recurring role is Geese Nukadia in Mushoku Tensei: Jobless Reincarnation. He also voices Asahi Naruhaya in the popular sports anime Blue Lock.

His extensive list of anime credits demonstrates a high volume of work across a wide variety of series. These include roles in major productions such as One Piece, where he voiced characters like Diesel, and Attack on Titan Final Season. Additional voice credits encompass series like Aharen-san wa Hakarenai, Aoashi, Arifureta: From Commonplace to World's Strongest, Black Summoner, Buddy Daddies, Date A Live IV, Dead Mount Death Play, My Dress-Up Darling, My Hero Academia, Shangri-La Frontier, and many others.