Julianna Guill was born on July 7, 1987 in Winston-Salem, North Carolina, USA as Julianna Minetree Guill. Her parents are Ann and Earl Guill. She is one of three children who all grew up singing and acting. She began tap, ballet and jazz dance at an early age, and continued singing in the choir while at R.J. Reynolds High School, from which she graduated in 2005. She also performed in local theater productions, and attended New York University before moving to Los Angeles. Early in her career, she made numerous guest appearances in television series such as
One Tree Hill (2003),
CSI: Miami (2002),
90210 (2008),
How I Met Your Mother (2005), and
CSI: Crime Scene Investigation (2000). She also had a regular role in the web television series
My Alibi (2008) as Scarlet Haukkson.
She had small roles in the
Brian Drolet film
2 Dudes and a Dream (2009) and
Fired Up! (2009). She appeared in a leading role of Katy in
Road Trip: Beer Pong (2009), which was released straight-to-DVD, and in
Friday the 13th (2009). The same year she appeared in MTV's
My Super Psycho Sweet 16 (2009). The film was released to mixed reviews from critics and had strong ratings. She also appeared in the independent teen comedy film
Costa Rican Summer (2010), and had a lead role in the thriller film
Altitude (2010). She also had a recurring role on the TBS series
Glory Daze (2010) as Christie Dewitt. Next year, she co-starred in the
Steve Carell comedy
Crazy, Stupid, Love. (2011), and guest starred in the NBC comedy
Community (2009) as Head Cheerleader. She also had a role in the Dark Castle production
The Apparition (2012).
She also had a recurring role on
Underemployed (2012) and a main role on the short lived
Bad Samaritans (2013). Her more recent roles include a recurring role on
Girlfriends' Guide to Divorce (2014), and lead roles in the dark comedy
Killing Poe (2016) and
Bad Night (2015). She also guest starred on
Rush Hour (2016) and
Relationship Status (2016), and had a role as Stark's Assistant in
Captain America: Civil War (2016).