April Stewart

April Stewart is an American actress and voice actress. She is perhaps best known for voicing  Wendy Testaburger, Liane Cartman, Sharon Marsh, Carol McCormick and other characters on the Fox's animated sitcom ''South Park. She also provided additional voices on Family Guy.''

For Disney, she voiced Marci McFist on Disney XD's Randy Cunningham: 9th Grade Ninja', and Lady Zartra and Power Princess on ''Avengers Assemble'. She also provided additional voices on Phineas and Ferb.''