 Daniel EvansManawydan (voice) | Manawydan (voice) |
| JJenny LivseyRhiannon (voice) | Rhiannon (voice) |
 Matthew RhysLleu Llaw Gyffes (voice) | Lleu Llaw Gyffes (voice) |
| GGruffydd DaviesYoung Lleu (voice) | Young Lleu (voice) |
 Sue Jones-DaviesSian (voice) | Sian (voice) |
 Ioan GruffuddKing Bendigeidfran (voice) | King Bendigeidfran (voice) |
| PPeter GruffyddMath (voice) | Math (voice) |
| RRobert Gwyn DavinLlwyd (voice) | Llwyd (voice) |
 Mali HarriesCigfa (voice) | Cigfa (voice) |
 Aneirin HughesGronw (voice) | Gronw (voice) |
| CClare IsaacBranwen (voice) | Branwen (voice) |
 Anton LesserTeyrnon (voice) | Teyrnon (voice) |
| RRichard LynchBen (voice) | Ben (voice) |
 Philip MadocGwydion (voice) | Gwydion (voice) |
 Paul McGannKing Matholwch (voice) | King Matholwch (voice) |
 Richard MylanPryderi (voice) | Pryderi (voice) |
| JJack O'KellyFinn (voice) | Finn (voice) |
 Lisa PalfreyArianrhod (voice) | Arianrhod (voice) |
| MMeic PoveyGwyn | Gwyn |
 Catrin PowellElin (voice) | Elin (voice) |
| DDilys PriceLlwyd (voice) | Llwyd (voice) |
 Alun RaglanEfnisien (voice) | Efnisien (voice) |
 Paul RhysLord Pwyll (voice) | Lord Pwyll (voice) |
| SSian RiversBlodeuwedd (voice) | Blodeuwedd (voice) |
| MMair RowlandsTevrnon's Wife (voice) | Tevrnon's Wife (voice) |
| DDorien ThomasWilliam (voice) | William (voice) |
 William ThomasHefeydd (voice) | Hefeydd (voice) |
 Menna TrusslerMidwife (voice) | Midwife (voice) |
| GGwyn Vaughan JonesGwawl (voice) | Gwawl (voice) |
| EEilian WynArawn (voice) | Arawn (voice) |