
Duffy was born and grew up in Manchester, England. He has Irish and Jewish heritage and ancestry. He began playing the guitar at the age of fourteen, being influenced by the music of Queen, Thin Lizzy, the Who, Aerosmith, Blue Öyster Cult, and the early work of Led Zeppelin. In the late 1970s he became involved in the punk movement, influenced by the New York Dolls, the Stooges, Buzzcocks, the Sex Pistols, and AC/DC. He started playing lead guitar with a number of different punk rock acts whilst still in school in the late 1970s, including the Studio Sweethearts.

The Cult - New York City
2006
The Cult - New York City

The Cult - Music Without Fear
2002
The Cult - Music Without Fear

The Cult: Pure Cult Anthology 1984-1995
2001
The Cult: Pure Cult Anthology 1984-1995

The Cult - Brixton Academy 1987
1987
The Cult - Brixton Academy 1987

The Cult: Live from The Ritz
1985
The Cult: Live from The Ritz

The Cult: Live at Coachella 2014
The Cult: Live at Coachella 2014