Lady Cassandra O'Brien.Δ17 appeared on the Doctor Who episode "The End of the World." It takes place five billion years into the future. Lady Cassandra claimed to be the last full-blooded human. But, as you can see, preserving herself required a lot of extreme plastic surgery. She's essentially a sheet of skin, eyes, mouth and a brain.
Mike Daws made this delicious Cassandra lasagna with a red pepper and radish cut just right. It's a minimal addition, but the effect is perfect. Now moisturize her!