Chris O'Dowd

John O'Dowd

(voice)

Mopple (voice)

Self - Cameo (uncredited)

Dermot

Jack E. McCarthy

Narrator (voice)

Dusty

Phillip

Kwan the Macaque (voice)

Flanny O'Lympic (voice)

Flanny the Lovebug (voice)

Roland

Jack Maynard

Alan 'Wilko' Wilkinson

Finn's Dad (voice)

Tom

Self

Shamus the Coachman (voice)

Duncan Thomson

Nicholas

Mundy

Douglas Downey

Self

Miles Daly

Postman Joseph Roulin

Boone

Tommy 'Zook' Zucarello

Franklin Portman

David Walsh

Self - Guest

Self - Guest

Narrator (voice)

Lennie

Brother Geraghty

Dr. Cockroach Ph.D.

Jack Brennan

Nurse

Self

Drew

Self

Self - Roy Trenneman

Richard

Dr. Cockroach (voice)

Grub (voice)

Tom Chadwick

Dr. Cockroach Ph.D.

Self

Ronnie

Bruce

Sean Murphy

Dave Lovelace

Thomas-John

Alex

Self

Mike

Rhodes

William Rackham

General Edward

Self

Marco

Ray

Simon

Self

Lindsay Carol

Post Modern Review Staff

Jase

Self

Liam

Headmaster

Self

Roy Trenneman

Brendan Dowd

Tommy O'Dwyer

Self

Self

Sid's Customer

Jonathan Crozier

Brendan Davenport

Bernie Maddox

Guard / Contestant (voice)

Butler (voice)

Self

Seamus (voice)