 Michael Hordern (qv) was not on set when the "Marleys Ghost"  segment was filmed; he was added in later through the use of an  optical printer. He only appears together with Sim in the two scenes  at the end of the "Ghost of Christmas Past" sequence, the latter of  the two being the scene where Jacob Marley dies. This was also true  of Michael Dolan (II) (qv), who played the Spirit of Christmas  Past.