As an actress, she has appeared on Broadway, film, and television, most notably as the Pretty White Girl on Chappelle's Show. She is an actor, composer and screenwriter in the film Clear Blue Tuesday, about which the New York Times said: «Erin Hill, as a giddy, harp-playing Trekker, stands out… The best and funniest scene in the film is Ms. Hill’s». USA Today premiered her sci-fi music video "Lookout, Science" in 2012. Hill's "Lookout, Science" and "Giant Mushrooms" music videos were featured in the Dragon Con Independent Film Festival 2012.
Hill won a 2013 Independent Music Award for her song "Stun," from the Erin Hill & her Psychedelic Harp album Girl Inventor.  She did Original Music and Sound Design for the 2013 Drama Desk Award-nominated That Play: a Solo Macbeth. She was featured in an HBO Game of Thrones 2013 promo, playing the Game of Thrones theme on her harp.  Hill is also the voice and harp behind Tafne, a central character in the Android video game The Legacy of Barubash. Newsday has called her "the dangerously enjoyable Erin Hill." 
World of Nickhoo by The Dream Jam Band (April 2014) Dream Jam Productions. Erin Hill: vocals, harp
Let It Snow by Jewel (September 2013) Somerset Group, Ltd. Erin Hill: harp
Girl Inventor by Erin Hill & her Psychedelic Harp (January 2013) Gridley Records. Erin Hill: songwriter, vocals, harp, keyboards, bass.
Leave it in the Soup (July, 2010) by The Dream Jam Band. Dream Jam Productions, EMI. Produced by Rick Chertoff. Erin Hill: songwriter, vocals, bass, harp, keyboards; arranger on Shoes, co-producer on Melanie the Mermaid
Four Leaf Clover by Four Celtic Voices with Celeste Ray & Erin Hill (2009) Gridley Records. Erin Hill: songwriter, vocals, harp, bass.
Vapor by Taylor Barton with Wicked Felina (2006) Green Mirror. Produced by G.E. Smith. Erin Hill: co-writer, vocals, harp, guitar, keyboards, hammered dulcimer.
The Fantasticks (2006) Ghostlight Records/ Razor and Tie. The new Off-Broadway recording. Erin Hill: harpist.