American voice actor renowned for his extensive work in animation, he began his career in the late 1960s. Known for his versatility, he has provided voices for numerous iconic characters, including Fred Jones in "Scooby-Doo" and Megatron in "Transformers." His talent for animal sounds has made him a go-to performer for creature voices in films and television. With a career spanning over five decades, he remains a prominent figure in the voice acting industry.