David Kaye is a Canadian voice actor. He is best known for animation roles such as Megatron in five of the Transformers series, Optimus Prime in Transformers: Animated, Professor X in X-Men: Evolution, Cronus in Class of the Titans, Khyber in Ben 10: Omniverse, several characters in Avengers Assemble, and Duckworth in the reboot of DuckTales. He is also known for anime roles including Sesshōmaru in Inuyasha and Treize Khushrenada in Mobile Suit Gundam Wing, and video game roles such as Clank in the Ratchet & Clank series and Nathan Hale in the Resistance series. He is also the announcer for Last Week Tonight with John Oliver on HBO and voiced the Celestial Arishem in the Marvel Cinematic Universe film Eternals. He did voice work for various other studios in Vancouver, British Columbia, Canada for many years while occasionally doing voice work in Los Angeles, California, US, before fully relocating there in 2007.

Megatron is the main antagonist of the Transformers media franchise produced by the American toy company Hasbro and the Japanese toy company Takara Tomy. He is the tyrannical leader of the Decepticons, a villainous faction of alien robots that seeks to conquer their home planet of Cybertron and the rest of the known universe, and serves as the archenemy of Optimus Prime, the leader of the rival Autobot faction. As with all Cybertronians, Megatron can disguise himself by transforming into vehicles or weapons. His alternate modes have included a Walther P38 handgun, a particle-beam weapon, a telescopic laser cannon, a Cybertronian jet, and various tanks, depending on which continuity he is depicted in.