Aviva Baumann is an American actress. She began her career in the 1990s, debuting in the film Troublemakers. Her first credited role was in the 1997 film Up Above the World. In the 2000s, she landed roles in mostly independent movies, including Down in the Valley and Rolling. She later played the part of Nicola in the 2007 comedy film Superbad. After appearing in an episode of Criminal Minds, she played Shannon Gibbs in NCIS. She next starred in the movie Saint John of Las Vegas. In 2010, she appeared in the feature film Spring Break ’83. Also, the actress had guest roles in The Closer and Party Down.