[1] He made his international debut for England in July 2016, and was a member of the English team that won the 2022 T20 World Cup.

Mills studied sports journalism at the University of East London, before leaving to pursue a career in cricket.

[2] Mills made his first-class debut for Essex against the Sri Lankans in the tourist match of 2011 at Chelmsford.

Mills then went to Potchefstroom, South Africa for three weeks in November on a specialist fast bowling programme.

From 2016, Mills played for Quetta Gladiators in the Pakistan Super League[3][4] before signing with Karachi Kings in 2018.

[6] In September 2018, Mills was named in Kandahar's squad in the first edition of the Afghanistan Premier League tournament.

[7] In July 2019, he was selected to play for the Edinburgh Rocks in the inaugural edition of the Euro T20 Slam cricket tournament.

[19] Mills made his international comeback for England after 5 years in their first match of the World Cup against West Indies and took 2-17 from his 4 overs.