Enoch was born on 2 December 1988 in the Westminster district of London, to actor William Russell (1924-2024) and his second wife, Etheline Margareth Lewis,[2][3] a Barbadian Brazilian doctor.

Enoch is a fluent speaker of English, French,[8] Portuguese,[9] and Spanish, and graduated from the Queen's College, Oxford with a Bachelor of Arts in Modern Languages.

[11] After the Harry Potter films, Enoch appeared in a number of plays throughout London including Coriolanus, Timon of Athens, Antigone, and Happy New.

[17][18] In 2016, Enoch played Edgar/Poor Tom in the well-received Talawa Theatre Company and Manchester Royal Exchange co-production of King Lear, for which he garnered much praise for his characterisation and the physicality he brought to the roles.

[25] In 2020, Enoch returned for two episodes of How to Get Away with Murder's sixth season but in the separate role of the adult version of Christopher Castillo, Wes' son.