Bill Newton is an Australian voice actor and performer known for his extensive work in animation, anime dubbing, and video games, primarily based in Vancouver, British Columbia. His background includes over 25 years of involvement in the performing arts, beginning with theatre work where he served as a stage manager, lighting and sound technician, and on-stage actor before transitioning to voiceover.

In the realm of anime, Newton is recognized for his roles in several prominent series. He voices the characters Isami Toma, also spelled Isami Touma, and Kotaro Suwa in the series World Trigger. His other anime voice credits include Tasuke Kurokono in Gintama and Hanazawa in Dead Dead Demons Dededede Destruction.

Beyond anime, Newton has an extensive filmography in western animation and video games. He is known for his work on My Little Pony: Friendship is Magic, where he voiced multiple characters including Bright Mac, Pharynx, the villain Pony of Shadows, and Stygian. He has voiced Loki in several Marvel animated projects such as Lego Marvel Adventures and Marvel Battleworld: Treachery at Twilight. His other animation roles include Fred Finely and Intelligent George in various Ninjago series, Brainfreeze in Monster Beach, Zac the Sunrise in Beyblade Burst, and Warlon in The Dragon Prince. In video games, his work includes roles in Dragon Age: Inquisition and Grey Goo.

Newton has received recognition for his voice performances, including a nomination for a 2021 UBCP/ACTRA Award for his role as BrainFreeze in Monster Beach, a performance he based in part on Keanu Reeves. He has also made appearances as a guest at fan conventions, including Everfree Northwest in 2018. His live-action acting credits include roles in films such as Nightwatching, Cigarette Burns, and The Final Cut, as well as recurring television roles in series like DaVinci's Inquest and Intelligence.