A WAN 2.2 low noise character Lora is required for this to work but I think it's one of the better solutions out there right now and I quickly go over the whole process in the video
This is mostly a faceswap pipeline, hair color, body and clothes will be from the original video, select your reference videos with that in mind.
We use WAN 2.2 T2V not I2V make sure you get that right
Workflow in the zip
My character on the left in the samples
The video for this will be coming today or tomorrow