Hynden Walch (born February 1, 1971) is an American actress best known for voicing Starfire in the Teen Titans franchise and Princess Bubblegum in Adventure Time.

She also voiced Penny Sanchez in ChalkZone, Amore and Lockette in the Nickelodeon version of Winx Club, Elsie in Stanley, and Yutaka Kobayakawa in Lucky Star.

After UNC, she went to Chicago, Illinois, where she did plays, including The Rise and Fall of Little Voice on Broadway, where she won the Outer Critics Circle Award for her performance as the title character.

in American Literature and founded the Hillside Produce Cooperative, a free exchange of local, organically grown food, for which she was named runner up Citizen Entrepreneur of the Year by Global Green USA.

[2] On television, she voiced Starfire in Teen Titans, Penny Sanchez on the Nickelodeon show ChalkZone, Elsie on the Playhouse Disney show Stanley, Ace in Justice League and Justice League Unlimited, Harley Quinn in The Batman and in anime, she has voiced Amy Stapleton in IGPX, Emiri Kimidori in The Melancholy of Haruhi Suzumiya, Yutaka Kobayakawa in Lucky Star, and Nia Teppelin in Tengen Toppa Gurren Lagann.