Below is a sample email to send to send to actors who you auditioned but did not cast in the film. Do not send regret emails until you are sure that the actor you have cast is 100% locked for the role. Make sure you also copy the Producer of the show, so that they have the email for their records.
Dear (actor’s name),
Thank you so much for coming to audition for the FSU film, (title of film). We appreciate the time and effort given for this project. Unfortunately, we will not be able to use you at this time, but we hope to see you again soon as we enjoyed meeting you and seeing your work.
Your full name
Your crew position
Your cell phone number