Sonneborn worked on many independent films in New England before moving to LA and debuted in The Midnight Shorts Collection (2004) and since then regularly appeared in feature films, direct-to-video productions, TV series, TV mini-series and Short movies. Being a sought-after horror movie actress, she appeared in Detour into Madness Vol. 1, Camp Slaughter, School of Horror, A Lure: Teen Fight Club, Bloody Bloody Bible Camp and recently in House Across The Street (starring Eric Roberts), Piranha Sharks (starring Kevin Sorbo) and her self-written movie Alice D (starring Kane Hodder and Al Snow). She also appeared in popular TV series such as United States of Tara, Hello Ladies and Cuts.