Jonathan Adams (born July 16, 1967) is an American actor and voice actor. He is known for his work on American Dreams (2002), Osmosis Jones (2001), and Justice League: Crisis on Two Earths (2010).

For Disney, he voiced Mantacorn in Sofia the FirstRonan the Accuser in Guardians of the GalaxyAbsorbing Man in Ultimate Spider-Man, KorgThunderballPiledriver and Absorbing Man in Hulk and the Agents of S.M.A.S.H., Absorbing Man in Avengers Assemble, Kang in The Avengers: Earth's Mightiest Heroes, and addtional voices in Kinect: Disneyland Adventures.