AI Software that allows you to mix and match old versions of actors and characters, perhaps to create new scenes or stories. There are a few options that might interest you:

1. DeepFaceLab: A deep learning-based software for face manipulation and editing. It allows you to swap faces in videos and images.
2. FaceApp: A popular mobile app that uses AI to edit faces in photos and videos. It offers features like face swapping and aging.
3. Adobe After Effects: A digital visual effects, motion graphics, and compositing software that allows you to manipulate and combine video footage, including actors and characters.
4. Blackmagic Design Fusion: A visual effects and motion graphics software that offers tools for compositing, node-based editing, and 3D workspace.
Old versions of actors and characters might raise copyright and intellectual property concerns. Ensure you have the necessary permissions and legal clearances before using such software for creative Projects.
There are several filmmaking software options that allow you to use old characters in new scripts. Here are a few options:

1. Blender: A free, open-source 3D creation software that supports character modeling, rigging, and animation.
2. Adobe Animate: A popular animation software that allows you to create and import characters, and use them in new projects.
3. Autodesk Maya: A professional 3D computer animation, modeling, simulation, and rendering software that supports character creation and rigging.
4. Daz 3D: A 3D modeling and animation software that offers a large library of pre-made characters and props.
5. Toon Boom Harmony: A professional animation software used in many studios, which allows you to create and import characters, and use them in new projects.

These software options offer a range of tools and features to help you bring your old characters to life in new scripts.