story and character changes

Now that we are filming on Friday (2nd March), one of our actors is unable to film on this day so we will now only have three main characters instead of four; with one actor playing two roles. We will make this work by the use of continuity editing and shot types. These two characters are different roles.
We are also using another actor in our film, but she cannot make Friday either, so we have had to change her role slightly. Originally, her character was staying at 'Alcott Manor' with her friends, but instead we will change this to make her character challenge her friends to stay at the supposedly haunted house, adding a reason to the story, too.