Fran's catchphrase "coola-boola" was ad libbed by actor Peter Coonan.
The 'cocaine' used by the characters in the show is a sugary glucose substance
Tom Vaughan-Lawlor, Killian Scott, Barry Keoghan, Robert Sheehan and Ruth Negga all went on to star in different comic book adaptations.
Tom Vaughan-Lawlor, Aidan Gillen, Charlie Murphy, Brian Gleeson & Simone Kirby went on to appear in Peaky Blinders.
Ruth Negga & Robert Sheehan previously starred in misfits together.