W. B. Yeats is an influential Irish poet belonging to the Protestant Ascendancy. He firmly affirms his Irish identity in his poetry and politics, while maintaining aristocratic and conservative leanings. He maintains a lifelong fascination with magic, the occult, and Hermeticism, which deeply informs his literary output.

Kevin is a 35-year-old Irish politician serving as vice president and minister of Home Affairs for the Irish Free State. He belongs to the Cumann na nGaedheal party, supporting the Free State against the resisting Irish Republican Army. His bravery in the face of political violence earns deep admiration from those around him.

Maud is an heiress and passionate Irish nationalist who becomes a central figure in Yeats's early adult life. She declines numerous marriage proposals from the poet over the course of several decades but remains a vital source of artistic inspiration.

Georgie is the woman who marries Yeats when he is in his early fifties. She shares his deep interest in the paranormal and actively participates in his occult explorations, helping him develop practices of automatic writing.

Iseult is the 23-year-old daughter of Maud Gonne. She receives a marriage proposal from Yeats, which she firmly rejects just three weeks before he marries someone else.