[14][15] Lyndhurst started as a child actor, after training in acting at the Sylvia Young Theatre School, in Marble Arch, London from September 2011.

He played Little Jack Whitehall in the ITV television variety show, Tonight at the London Palladium, in the episode broadcast on 28 September 2014.

[18] Lyndhurst played Young Michael Gambon in the BBC Two comedy television film, Harry and Paul's Story of the Twos.

[20] Lyndhurst played Oliver 'Ollie' Coulton in the CBBC sitcom, So Awkward, from 21 May 2015[21] until his death during the airing of the sixth series.

[23] Lyndhurst voiced Honoroit Bandarlois, a non-playable character, in Final Fantasy XIV: Heavensward.

He posthumously won the Best Actor (Adult & Professional) Award at the Children's International Film Festival of Wales in 2022.

[37] Lyndhurst died in his sleep from a brain hemorrhage caused by acute lymphoblastic leukemia[38][39] at his family home in Fulham, Greater London on 22 September 2020.

[40][41][42] In a statement on 1 October, his father, Nicholas, said he and his wife, Lucy, were "utterly grief stricken and respectfully request privacy.

[48] Jack Whitehall, a comedian and actor, whom he often collaborated with, led tributes on social media,[49] along with several of his So Awkward co-stars.

[51] Source(s): [20][52][53] Lyndhurst is featured on the "In Memory Of" section of the official British Academy of Film and Television Arts (BAFTA) website.