Buck attended Wood River High School in Hailey Idaho, where she took on her first acting roles in their theater productions.

[3] Buck has starred in numerous live theater productions including Paula Vogel's Pulitzer Prize-winning play How I Learned to Drive in 2010[4] and in the West Coast premiere of Ten Cent Night written by Marisa Wegrzyn in 2009.

[8] In 2008 Tara also completed a motorcycle-themed drama pilot for HBO called 1% directed by Alan Taylor and written by Michael Tolkin.

[9] The show never aired on HBO due to creative conflicts with early Hells Angels organizer and frequent spokesman Sonny Barger.

[10] Buck has made guest appearances on Bones, The X-Files, Criminal Minds,[11] Justified, Cold Case,[3] Nip/Tuck,[12] The Shield, Southland, The Closer and Bloodline.

[21] In 2017, Buck starred in and executive produced the film, Son of Perdition, a period drama set in the early days of the American frontier which was written and directed by Trevor Riley.