
The Victorious television series ended production in July 2012 and the series' last episode aired on February 2, 2013. On June 5, 2012, Victorious 2.0: More Music from the Hit TV Show was also released, with Thomas featured in the songs "Countdown" and "Don't You (Forget About Me)". On August 2, 2011, the soundtrack album Victorious: Music from the Hit TV Show was released, with Thomas featured in the songs "Song 2 You" (written by him) and "Tell Me That You Love Me". He also appeared as himself in an episode of True Jackson, VP. Thomas also appeared as Andre Harris in the crossover episode between Victorious and iCarly, " iParty with Victorious". He played a main character on Victorious, portraying Andre Harris, which premiered on Nickelodeon on March 27, 2010. He also appeared as Harper in the iCarly episode " iCarly Saves TV" and was featured on The Naked Brothers Band Christmas Special. Thomas has also guest-starred on Jack's Big Music Show and Just Jordan. In 2007, Thomas appeared in the film August Rush as Arthur, performing the song "La Bamba", and briefly after signed a development deal with Nickelodeon appearing as the singing voice for Tyrone in the computer-animated musical series The Backyardigans. Thomas also performed in the Broadway production of The Color Purple.

and toured with the company during its five-month run in Los Angeles and San Francisco. In 2004, he appeared as Jackie Thibodeaux in the original Broadway cast of Tony Kushner's Caroline, or Change.

He made his Broadway debut at the age of 10 in 2003 as Young Simba in the Broadway production of The Lion King. Thomas III was born on Augin Brooklyn, New York City to Jayon Anthony and Leon Thomas II.
