The original members were Justin Greaves (drums, ex-Bradworthy), Johnny Morrow (vocals), Jim Rushby (guitar, ex-Ironside, Wartorn), Steve Watson (guitar, ex-Cerebral Fix) and Doug Dalziel (bass, ex-Ironside).

In 1996, Iron Monkey wrote a six-song album that was released on the small imprint Union Mill.

Johnny then formed My War and Murder One before suffering a fatal heart attack in the summer of 2002.

Jim played in Hard to Swallow, Armour of God, Phantom Limb Management and Geriatric Unit.

Scott Briggs was replaced on drums by Steven Mellor aka Ze Big from the band Widows in January 2018.