Markus Niemi is a Finnish voice actor who lent his voice to Kermit the Frog in the dub of Muppets Now (also as Sam the Eagle) and in Muppets Haunted Mansion: Kummituskartano (Muppets Haunted Mansion).
Niemi dubbed the title character in the film Sonic the Hedgehog and its sequel, Knuckles on Sonic Boom, Fred in Scoob!, and Steel and others on Justice League Action. Live-action dubbing includes Lin-Manuel Miranda in Mary Poppins Returns and Billy Magnussen in Aladdin.