Robert Arkins as Jimmy Rabbitte

Michael Aherne as Steven Clifford

Angeline Ball as Imelda Quirke

Maria Doyle Kennedy as Natalie Murphy

Dave Finnegan as Mickah Wallace

Bronagh Gallagher as Bernie McGloughlin

Glen Hansard as Outspan Foster

Félim Gormley as Dean Fay

Johnny Murphy as Joey 'The Lips' Fagan

Dick Massey as Billy Mooney

Andrew Strong as Deco Cuffe

Ken McCluskey as Derek Scully

Colm Meaney as Jimmy Rabbitte, Sr.

Anne Kent as Mrs. Rabbitte

Andrea Corr as Sharon Rabbitte

Gerard Cassoni as Darren Rabbitte

Ruth Fairclough as Rabbitte Twin

Lindsay Fairclough as Rabbitte Twin

Ger Ryan as Pawnbroker

Liam Carney as Duffy

Mark O'Regan as Father Molloy

Phelim Drew as Roddy the Reporter

Sean Hughes as Dave from Eeijit Records

Philip Bredin as Ray

Aoife Lawless as Imelda's Sister

Lance Daly as Kid with Harmonica

Conor Malone as Protest Song Singer

Jezz Bell as Heavy Metal Singer

Colm MacConiomare as Fiddler

Emily Dawson as Punk Girl Singer

Dave Kane as Coconuts Trio

Kristel Harris as Coconuts Trio

Maria Place as Coconuts Trio

Brian MacAodha as Uileann Pipe Player

Tricia Smith as Les Miserables Singer

Canice William as Smiths' Song Singer

Patrick Foy as Cajun Trio

Jody Campbell as Cajun Trio

Allan Murray as Cajun Trio

Eanna MacLiam as Failed Drug Buyer

Philomena Kavanagh as Rabbittes Neighbour

Peter Rowen as Shy Skateboard Auditioner

Eamonn O'Conner as Only De Lonely Singer

Maura O'Malley as Joey's Mother

Blaise Smith as Pool Hall Manager

Derek Herbert as Duffy's Sidekick

Owen O'Gorman as Duffy's Sidekick

Pat Leavy as Unemployment Official

John Cronin as Kid with Horse

Rynagh O'Grady as Bernie's Mother

Sheila Flitton as Church Cleaner

Michael Bolger as Community Centre Kid

Mick Nolan as Imelda's Father

Eileen Reid as Imelda's Mother

Bob Navan as Regency Pub Barman

Derek Duggan as Photographer

Paddy O'Connor as Rock Salmon Man

Jim Corr as Avant-Garde-A-Clue Band

Larry Hogan as Avant-Garde-A-Clue Band

Bernard Keelan as Avant-Garde-A-Clue Band

Ronan Hardiman as Dancehall Manager

Mikel Murfi as Music Journalist

Josylen Lyons as Deco's Fan

Winston Dennis as Man in Limo

Alan Parker as Eejit Record Producer

Paul Bushnell as Avant-Garde-A-Clue Band / Eejit Engineer

Sharon Corr as Fiddle Player (uncredited)

Caroline Corr as (uncredited)

Michael O'Reilly as Greg

Gilbert White as Aul lad with horse (uncredited)