[7] In early 2012, Carroll was cast as Mr. Frazernagle in Ministry of Curious Stuff on the CBBC channel, which starred Vic Reeves,[6] and has appeared in two series of the show.

[9] On 6 June 2014, Carroll was cast in the fourth series of Sky1 comedy show Trollied, in the role of Harry.

[12] In August 2019, Carroll appeared in Episode 1 of series 7 of Father Brown, where he portrayed Tim Cudlip, the younger brother of two would-be train robbers.

[13] In 2020, it was announced Carroll had been cast to make his theatrical debut in Cured, a play about a religious pilgrimage.

[15] He would be introduced as Bobby Crawford, the nephew of series veteran Carla Barlow, and son to Rob Donovan.

[16][17] In 2024, Carroll and the rest of the writing and production team for Mobility won the BAFTA for Short Form.

[22] Following the Britain's Got Talent final, Carroll signed a deal with Simon Cowell's company Syco to write an autobiography.

[23] Carroll has appeared on the CBBC shows The Dog Ate My Homework[24] and Sam & Mark's Big Friday Wind-Up.