Matthew Modine
Jack Robinson (2 eps)
Vanessa Redgrave
Countess Wilhelmina (2 eps)
Mia Sara
Ondine (2 eps)
Daryl Hannah
Thespee (2 eps)
Jon Voight
Siggy (2 eps)
Richard Attenborough
Magog (2 eps)
Bill Barretta
Thunderdell (2 eps)
Honor Blackman
Jules (2 eps)
Jim Carter
Odin - Member of the Great Council of Mac Slec (2 eps)
James Corden
Bran - Thunderdell's Son (2 eps)
JJ Feild
Young Jack (2 eps)
Jonathan Hyde
Dussan (2 eps)
Anton Lesser
Vidas Merlinis (2 eps)
Julia McKenzie
Jack's Mum (2 eps)