He rescued Diarmuid and Gráinne from one or two tight spots during their pursuit by the Fianna.
The ensemble and the three main characters are introduced during the surreal prologue: Finn McCool (a non-dancing role played by Tony Kemp), high king of Ireland; Diarmuid (Colin Dunne), captain of the Fianna—Finn's army; and Grania (Jean Butler), Finn's betrothed.
The Pursuit of Diarmuid and Gráinne | Diarmuid Gavin | Diarmuid | Diarmuid Whelan | Diarmuid O'Leary | Diarmuid Marsden | Diarmuid Lynch | Diarmuid Connolly |
Diarmuid Connolly is a Gaelic footballer and hurler with Dublin and St Vincents.
Cable Regime also featured Diarmuid Dalton (now bassist with Jesu) and Paul Neville (also early guitarist with Godflesh.
Eventually Fionn organises a boar hunt near Benbulbin and Diarmuid joins, in spite of a prediction that he will be killed by a boar.