In 2008, when Thomas was in his late teens he began his romantic love affairs with Patience Harding. They dated each other as a boyfriend and girlfriend for several months. Patience Harding is a beautiful lady. They broke up in 2009.
In December 2012, Thomas was spotted with Isabella Melling. Isabella Melling is also an actress who is the elder sister of English actor William Melling. William is now aged 21 years old. She is famous for her role in the TV series My Parents Are Aliens. He is one year younger than her. His nationality is also English.
Thomas's father is a great musician. He was inspired from his father to pursue his career in music. He is an avid fan of bass and guitar and he also plays them well. As his mother is also an actress, he also induced his interest in acting at a young age. In 2001, he appeared in the TV movie Station Jim where he portrayed the role of Henry. That year he also appeared in the TV movie The Miracle of the Cards. The following year, he appeared in the short movie Mrs. Meitlemeihr. He showed an outstanding acting talent at a young age and that why he got his first feature film role in 2003 in a British Christmas-themed romantic comedy film Love Actually. The played the role of Sam in this movie. He got his rise in fame in 2007 for his voice role of Ferb Fletcher in the TV series Phineas and Ferb. His breakthrough role as an actor came in 2013 in an American fantasy drama television series Game of Thrones. He appeared in about 10 episodes where he played the role of Jojen Reed. His net worth is $1.5 Million. He loves singing in his spare time.