Eion Moore

Eion Moore is the Villain of Cillian Darcy Time Travel, and the main antagonist of the series finale called Destiny of Cillian Darcy, Cillian Darcy: The Warrior Within and The End of Cillian Darcy's Time.

Twelfth Incarnation
Eion first appeared in his twelfth incarnation at the end of The Death Knight where the Second Cillian's nightmare caused him to regenerate.

Alford Incarnation
Eion returns in Tully Alford's body to kill Callie (the thirteenth Cillian Darcy)