[2] The band's original lineup included George "Corpsegrinder" Fisher, who found greater success in 1995 as frontman of Cannibal Corpse.

Vocalist George "Corpsegrinder" Fisher, drummer Lee Harrison and bassist Mark Van Erp founded Monstrosity in 1990.

Guitarist Jon Rubin was replaced by Jason Morgan and bassist Mark Van Erp, by Kelly Conlon.

Jason Avery was the vocalist, Lee Harrison, the drummer, Tony Norman, the guitarist and Kelly Conlon, the bassist.

In December 2006, Werner was replaced by Mike Hrubovcak (Divine Rapture, Imperial Crystalline Entombment, Vile) and Mark English (guitar) joined the band.