Tobin began her professional career on the stage in
Houston, Texas, in a
Theatre Under the Stars production of the musical
Cats. She performed as Etcetera in the ensemble cast. The following year, she starred in the ensemble of the Theater Under the Stars' production of
West Side Story, also in Houston. In 2008, Tobin performed in the ensemble of
Paper Mill Playhouse's production of
High School Musical on Stage! in
New Jersey. From 2008 to 2009, she performed in the ensemble of
Oklahoma! in
Atlanta with the Theater of the Stars company. Tobin made her
Broadway debut as a replacement for the role of Sherrie Christian and a swing for the musical
Rock of Ages. In 2011, she toured with the
Trans-Siberian Orchestra. She made her first appearance as the character in the
fourth season premiere episode "
The New Rachel", and was a regular recurring cast member for throughout that season. She was upgraded to a main cast member for the series'
fifth season. Kitty's debut received a mixed reception from critics, but opinions on the character soon changed. Several songs performed by Tobin as Kitty on the series have been released as singles available for
digital download, and have also featured on the
soundtrack albums. In 2014, Tobin guest starred in
Lifetime's legal comedy-drama series
Drop Dead Diva as Empress Katia in the episode "Afterlife". That same year, she appeared as Kimmee Kittson in the episode "Passing the Torch" of
ABC Family's sitcom
Mystery Girls. In 2015, Tobin guest starred as Blaze Talcott, a computer coder, in an episode of
CBS' procedural action-drama series
NCIS: Los Angeles titled "Blaze of Glory". Since December 2015, Tobin has co-hosted the female-centric podcast series "The Lady Gang" with
Keltie Knight and Jac Vanek. In October 2018,
Ladygang premiered as a talk show on the
E! network. ==Personal life==