Emily Lightman (Hayley McFarland)Emily Lightman (Hayley McFarland) is the adolescent daughter of Dr. Cal Lightman and Zoe Landau. Her divorced parents share custody of her. She loves her dad very much and is very loyal to him. She will often take her dad's side over her mom's. However she gets very annoyed when her father uses his deception skills to discover whether she is telling the truth and to interrogate her boyfriends. But she does enjoy when her dad can use his skill to her benefit - especially when it comes to navigating high school social situations. A typical teenager, she is known to get in trouble from time to time but is basically a great kid.