Heidi Hynden Walch (born February 1, 1971) is an American actress and voice actress.
She is best known for voicing Yutaka Kobayakawa in Lucky Star, Nia Teppelin in Gurren Lagann, Emiri Kimidori in The Melancholy of Haruhi Suzumiya, Amy Stapleton in IGPX, and in cartoon, she has voiced Harley Quinn in The Batman, Ace in Justice League and Justice League Unlimited, Elsie on the Disney Channel show Stanley, Penny Sanchez on the Nickelodeon show ChalkZone, Starfire in Teen Titans and Princess Bubblegum in Adventure Time. In 1989 Walch received the Presidential Scholarship and went to the UNC School of the Arts in Winston-Salem, North Carolina. After UNC, she went to Chicago, Illinois, where she did plays.
In video games, she voiced Jasmine and Junko in Viewtiful Joe: Double Trouble!, Coco Bandicoot and Polar in Crash Team Racing. She recently provided the English voice of Hitomi in Dead or Alive Xtreme 2 and Dead or Alive Paradise. Most recently, she voiced Viridi, the Goddess of Nature, in Kid Icarus: Uprising.
- Yutaka Kobayakawa - Lucky Star
- Nia Teppelin - Tengen Toppa Gurren Lagann
- Penny Sanchez - ChalkZone
- Elsie - Stanley
- Ace - Justice League
- Harley Quinn - Batman
- Coco Bandicoot, Polar - Crash Team Racing
- Viridi - Kid Icarus
- Emiri Kimidori - The Melancholy of Haruhi Suzumiya
- Starfire/Blackfire - Teen Titans
- Princess Bubblegum - Adventure Time