He is known for playing Lestat de Lioncourt in Interview with the Vampire (2022–present), Dale Jennings in The Newsreader (2021–present), and Father Ignatius in Lambs of God (2019).

[17] That same year, Reid played Young Finlay in the war film The Railway Man, alongside Stellan Skarsgård, who portrayed the older version of the character.

[23] That year, he also played the young Alexander "Sasha" Ivanov in Shamim Sarif's Cold War espionage film Despite the Falling Snow[24] and John Cree, a "failed playwright"[25] and a "controlling husband"[26] in The Limehouse Golem.

In 2017, Reid played DCI Len Bradfield in Prime Suspect 1973 opposite Stefanie Martini, who portrayed the young Jane Tennison.

[30] That same year, he played Young Max opposite Phoebe Tonkin in the supernatural mystery Bloom, which centres around an enchanted plant that can revive physical youth.

[33][34] In the gothic drama Lambs of God (2019), Reid played Father Ignatius, a priest assigned to reclaim a monastery for the church by relocating the last three nuns of the Order of St. Agnes.

[38] In 2021, Reid portrayed Sergeant Klintoff in Leah Purcell's feature directorial debut, The Drover's Wife, a First Nations revisionist Western thriller.

[47][48][49][50] Kayleigh Donaldson of Consequence described Reid's performance as "directly taken from the novels, as opposed to the camp eccentricity of Tom Cruise".

[52] Similarly, Daniel Fienberg of The Hollywood Reporter praised Reid's ability to "convincingly command every room" in his review of the series.

[53] In 2011, Reid played Soranzo in 'Tis Pity She's a Whore at the Leeds Playhouse alongside Sara Vickers and Damien Molony.

[54] He later played Gene Laine in The Old Vic and Noël Coward Theatre productions of the musical Girl from the North Country (2017–2018), alongside Claudia Jolly, Sheila Atim, Shirley Henderson, and Ciarán Hinds.