John Timothy Power is an Irish-English singer, songwriter and guitarist. He is the frontman of the Britpop band Cast, and the bassist and backing vocalist for The La's from 1986 to 1991. Following the dissolution of Cast in 2001, Power embarked on a solo career.

Cast is an English indie rock band formed in Liverpool in 1992 by John Power and Peter Wilkinson after Power left The La's and Wilkinson's former band Shack had split. Following early line-ups with different guitarists and drummers, Liam "Skin" Tyson (guitar) and Keith O'Neill (drums) joined Cast in 1993.