Anecdotes

Is a second cousin, once removed, of Hugh Grant. One of Thomas's maternal great-grandmothers, Barbara May Randolph, was the sister of Hugh's maternal grandmother, Margaret Isabel Randolph.

Plays guitar, but had to learn to play left-handed for Il était une fois John (2009).

Learned to play drums from his father for his role in Réellement l'amour (2003).

Plays bass in the band Winnet, which includes his mother, sister, and father.

Has starred in three movies with Colin Firth: Réellement l'amour (2003), Nounou McPhee (2005) and La Dernière Légion (2007).

Established Brodie Films in 2006 with his mother, Tasha Bertram. Brodie Films is an independent film company based in London with the objective to create opportunities in the film industry for new British talent; innovative writers, actors and directors.

Played a minor role in Star Wars: The Force Awakens as Petty Officer Thanisson. His character was the First Order Officer who warned another that a TIE Fighter containing Finn and Poe was escaping the Finalizer.

At age 13, while accidentally viewing a sex scene in the film Réellement l'amour (2003), he told director Richard Curtis that it was the first 15-rated film he had ever seen at that age.

Good friends with The Maze Runner co-stars Dylan O'Brien, Will Poulter and Kaya Scodelario.

His father is Scottish, from Banchory, Scotland. His mother has English, and small amounts (to varying degrees) of Scottish, Channel Islander (Jersey), Welsh, Cornish, French, and Belgian (Walloon), ancestry.

Has played a character with the ability to see the future on two separate TV shows: first as Tim Latimer in _"Doctor Who" (2005) {Human Nature (#3.8)} and {The Family of Blood (#3.9)}_, then as Jojen Reed in multiple episodes of Le Trône de fer (2011).

Has been in a relationship with former child actress Isabella Melling since December 2012.

Almost certainly the only actor in history to have played both Adolf Hitler and Paul McCartney before reaching the age of twenty.

Loves motorbikes and leather jackets.

Got engaged to actress Talulah Riley after having worked with her on the TV miniseries Pistol (2022). (juillet 2023)

On July 2023, Brodie-Sangster announces engagement to an English actress Talulah Riley. After a year of dating.

Was in a relationship with Patience Harrison from 2008 to 2009.