- Vernon Whitten
- Patrick, age 10
- Gilbert Greene
- Patrick, age 16
- Ira Allen
- Patrick, apostle of Ireland
- Alice Cardinall
- Conchessa, Patrick's mother
- Dermot McCarthy
- Calpurnius, Patrick's father
- Alice Keating
- Lupita
- J.B. Carrickford
- St. Martin, Patrick's uncle
- Herbert Mayne
- Gornias, the blind hermit
- Patrick McDonnell
- The foster parents
- Mary Murnane
- The foster parents
- O'Carroll Reynolds
- Niall of the Nine Hostages
- Eddie Lawless
- Milcho
- Charles Doyle
- Dichu
- George Griffin
- King Laoghaire, High King of Ireland
- Maude Hume
- Queen
- Thomas Lewis
- Lucat Mael, a druid
- Morgan S.T.
- Lochru, a druid
- C. Byrne
- Bemigus, a boy disciple of Partrick
- Miss. Poole
- Parents of Benignus
- Leo Strong
- Parents of Benignus
- Ernest Matthewson
- Bishop Tussach
- Jack Drago
- Auxilius coedjutors of Patrick
- Stephen Clarke
- Secundinus coedjutors of Patrick
- Jack McDermott
- Victor, an angel
- W. Fitzgerald
- Emperor Theodosius
- George Brame
- Pope Celestine
- Peter Wise
- Teactaire
