Sam Riegel

Samuel Brent Oscar Riegel (born October 9, 1976) is an American voice actor. He is best known for his voice roles as Donatello in the 2003 Teenage Mutant Ninja Turtles series, Phoenix Wright in the Ace Attorney games, and Teddie from Persona 4. He has also worked for Nickelodeon as the voice director for Fresh Beat Band of Spies and Sanjay and Craig, as well as the voice of Riven in the revival of Winx Club.

Since 2015, he has been a regular cast member of the web series Critical Role, in which he and other voice actors play Dungeons & Dragons. In 2022, the show's first campaign was adapted into the animated series The Legend of Vox Machina, followed by the second campaign adaptation The Mighty Nein in 2025.