You could do it, but it would take forever. Here are some starting points for the different technologies involved:

Here's how to make the walking robot: https://asimo.honda.com/ http://users.umiacs.umd.edu/~fer/cmsc828/classes/cse390-05-0...

Here's how to make it look like them: https://www.creativebloq.com/features/deepfake-examples https://www.youtube.com/watch?v=_9qs6JudXJg

Here's how to make it talk like them: https://github.com/CorentinJ/Real-Time-Voice-Cloning