John Leeson is a highly talented voice actor widely known for voicing iconic characters such as K9, Krarg, Nucleus of the Swarm, and many others. Over the years, John Leeson has worked across anime, cartoons, movies, TV shows, and video games, bringing depth, emotion, and personality to every role.
With a recognizable voice and strong performance style, John Leeson has become a fan-favorite among audiences searching for authentic character voices, powerful anime performances, and memorable game character portrayals. Their work includes major roles in Doctor Who: The Five(ish) Doctors Reboot, The Sarah Jane Adventures, and Doctor Who (2005), along with several supporting and lead roles across different genres.
John Leeson continues to voice characters for international studios and streaming platforms, gaining popularity for their versatility, expressive delivery, and ability to adapt to different voice styles—whether dramatic, comedic, villainous, or heroic. From animation and gaming to dubbing and commercials, John Leeson remains one of the most recognized and searched voice actors in the industry.