Alexis is artificial, with white make-up, red nails and lips, black curls, while Krystle is 'natural' with fair hair, blue eyes, free hair [...] Krystle is normally seen at home and she welcomes into it anyone who needs comfort and support. She accepts without resentment Blake's children and she is frequently called on to ameliorate his patriarchal harshness and his castigation of himself."
Alexis is a character with artificial features like makeup, while Krystle is more natural in appearance. Krystle is known for her welcoming nature at home and her ability to comfort others. She accepts Blake's children without resentment and often acts as a mediator between him and his harshness.