At the time of this release, The Sisters Of Mercy comprised Andrew Eldritch, Gary Marx, Craig Adams, Ben Gunn and Doktor Avalanche, and all five names appeared on the EP's artwork. However, in 1992 Eldritch revealed that Marx and Adams were absent from the recording: 'On records like "The Reptile House" they didn't even play. They weren't into recording that much, they just wanted to play live. They were sleeping in some corner until I woke them up after I had played and recorded everything on my own. When they asked me how their guitar and bass parts had turned out, I used to say to them they performed very well. Gary didn't even listen to "The Reptile House" until it had been released on vinyl and I handed it to him with the words "This is our new record, you'll like it!".'