Interference [Mark 1] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Cal McCarthy [Drums], Maurice Culligan [Piano & Keyboards]
Interference [Mark 2] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Cal McCarthy [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin]

In 1987, Colm McCaughey joined the band.
The Back Lane Boys Line Up : Fergus O'Farrell [Vocals & Guitar], Kevin Murphy [Bass Guitar], Colm McCaughey [Violin]

In 1988, Interference took a break from performing as Fergus had developed an infection of his vocal chords. The band members went off to pursue their individual interests. Later this year, Fergus, Kevin and Colm reappeared as The Back Lane Boys.
Interference [Mark 3] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Ray McCann [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin]

In 1988, Cal McCarthy left the band. The band tried out a number of different drumms. Ray McCann eventually joined the band in 1990
The Swinging Swine Line Up : Joanne Loughman [Vocals], Hugh O'Carroll [Violin & Guitar], Billy Gegarthy [Drums]
Interference [Mark 4] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Billy Gegarthy [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin], Ronan Gleeson [Guitar]

In 1992, Ray left the group. They were joined by Billy Gegarhty who had previously played with The Swinging Swine on drums and Ronan Gleeson on guitar.
Interference [Mark 5] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Billy Gegarthy [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin], Cian Roche [Guitar]

Ronan Gleeson leaves the band and is replaced by Cian Roche
Hank Halfhead & The Rambling Turkeys Line Up : Niall Toner [Vocals & Guitar], Ciaran Donnelly [Guitar], Fran Scattergood [Bass Guitar], Peter Maybury [Drums], Maurice Mulcahy [Fidlle], Joey Pleass [Drums]
Interference [Mark 6] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Joey Pleass [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin], Cian Roche [Guitar]
Bungalow Line Up : Gala Hutton [Vocals & Guitar], Dave Dorgan [Guitar], Justin Healy [Drums]
Interference [Mark 7] Line Up : Fergus O'Farrell [Vocals & Guitar], James O'Leary [Guitar], Kevin Murphy [Bass Guitar], Justin Healy [Drums], Maurice Culligan [Piano & Keyboards], Colm McCaughey [Violin], Cian Roche [Guitar], Paul Tiernan [Vocals & Guitar]

Justin Healy joined the band on drums. He had previously played with The Golden Horde, The Glee Club and the Forget-Me-Nots.
Flex And Fairweather Line Up : Paul Tiernan [Vocals & Guitar]
Interference [Mark 8] Line Up : Fergus O'Farrell [Vocals & Guitar], Kevin Murphy [Bass Guitar & Cello], Colm McCaughey [Violin], Paul Tiernan [Guitars]

At this time Paul Tiernan also joined the group.
Paul Tiernan Line Up : Paul Tiernan [Vocals & Guitar]