Sofie Zamchick (born April 2, 1994) is an American singer, songwriter, actress and puppeteer. She is best known as the voice of Linny the Guinea Pig on the American animated children's television series, Wonder Pets! opposite Teala Dunn and Danica Lee. Zamchick attended the Experimental Theatre Wing at NYU's Tisch School of the Arts. She is a versatile musician and plays the marimba, guitar, piano, and various other instruments.

Zamchick grew up in Tenafly, New Jersey^[1] and attended Tenafly High School.^[2]

Zamchick has acted and sung in commercials such as Kidz Bop, short films, television series, operas and in full feature films. As early as the age of 7, she had already appeared in three Metropolitan Opera productions and sang for Matthew Barney's Cremaster 3.^[3] The operas were Rusalka, Marriage of Figaro, and La Juive. She also co-starred with Whoopi Goldberg playing a cat named TJ on the Nick Jr. program, Whoopi's Littleburg. Other notable works include Priscilla, The Rape of the Sabine Women,^[4] Blood into Flames, and 89 Seconds at Alcázar.^[5] She was also featured in a Virgin Mobile commercial with musician Wyclef Jean.