[1] He made his List A cricket debut on 26 July 2024 in the One-Day Cup against Kent.
[8][9][10][11] He played for a Young Lions Invitational XI against England U19 at Loughborough in June 2024 and, whilst bowling, took the wicket of Rocky Flintoff, son of his father's former England teammate Andrew.
[13][14][15][16] Vaughan made his List A debut for Somerset against Kent at Taunton on 26 July 2024 in the One-Day Cup, but took no wickets and was run out without facing a ball.
[21][22] In just his second first-class appearance on 9–12 September 2024, Vaughan proved the "match-winner" as Somerset "pulled off one of the greatest County Championship victories in their history" by defeating Championship leaders and reigning champions Surrey.
[23][24] Vaughan was chosen to captain the England Under-19 squad on their tour of South Africa in January 2025.