Name: Sigmasix

Full Name: Sigma 682440

Portrayed by: Felipe Izquieroo

Name: Kappatoo

Full Name: Kappa 270934

Portrayed by: Simon Nash

Name: Carol Cashmere

Portrayed by: Gillian Eaton

Name: Kappatoo's Father

Portrayed by: Prentis Hancock

Name: Lucy Cashmere

Portrayed by: Nina Muschallik

Name: Steve Williams

Portrayed by: Graeme Hawley

Name: Computer

Portrayed by: Andrew O'Connor

Name: Servant Class Computer

Portrayed by: David Whittaker

Name: Tracey Cotton

Portrayed by: Denise Outen

Name: Mufour

Portrayed by: Vanessa Haddaway

Name: Referee (Hypergrid)

Portrayed by: Graham Overton

Name: Derek Cashmere

Portrayed by: John Abbott

Name: Zeta / Zeta 8

Full Name: Zeta 872496

Portrayed by: Rula Lenska

Name: Kappatoo's Mother

Portrayed by: Caroline Hunnisett