Casey (previously known as Well Wisher) is a melodic hardcore band formed in South Wales, United Kingdom in 2014. Named after an album by The Rise of Science, the name Casey is a tribute to late Hawthorne Heights guitarist Casey Calvert.

Formed by vocalist Tom Weaver and lead guitarist Liam Torrance, the band is now completed by rhythm guitarist Toby Evans, bassist Adam Smith and drummer Max Nicolai.

On December 1st, 2018 Casey announced on Facebook that they will be breaking up in 2019 following their last tour cycle.

Exactly 4 years after the announcement of their breakup, on December 1st, 2022, Casey announced their reunion.