Xtro

Philip Sayer

Sam Philips

Bernice Stegers

Rachel Philips

Danny Brainin

Joe Daniels

Maryam D'Abo

Analise Mercier

?

Simon Nash

Tony Phillips

Peter Mandell

Clown

David Cardy

Michael

Anna Wing

Mrs. Goodman

Robert Fyfe

Doctor

?

Katherine Best

Jane

?

Robert Pereno

Ben

?

Sean Crawford

Commando

?

Tim Dry

Monster

Susie Silvey

Woman in Cottage

Arthur Whybrow

Mr. Knight