Thomas Byrne is a British actor. He is best known for playing Nemo Nobody at nine in Mr. Nobody, and Sam Brewer in Down to Earth. He also played Cyril in Who Killed Mrs De Ropp?.
Other television credits include Casualty (2004), The Last Detective (2005), Extras (2005), Where the Heart Is (2006), The Bill (2006), Wire in the Blood (2007–2008), Mutual Friends (2008).
Thomas Byrne started his career at the age of six and finished his last job at the age of fourteen.