Lola Felicia is a minor character in the series. She is a dancer and the mother of Mr. Cat. She is occasionally mentioned by her son but does not play a large role in the show.
She has a loving relationship with her husband, Al.
Her relationship with Mr. Cat might have been quite complicated, as he either depicts her as perpetually angry and nagging, or as extremely loving and kind. They don't keep in touch anymore, but Mr. Cat says he misses her after being injected with a truth serum. He also demands that his friends respect her, but in "Let's Play Jump Rope", he claims to have never loved her at all, and he mentions in another episode that she always screamed at him. In "Let's Play Red Light, Green Light", Mr. Cat mentions that the Cat Flap he uses used to belong to Lola Felicia, but was passed down to him for unknown reasons. Of Lola Felicia's three sons, Mr. Cat is said to have been her favorite.
Her name is an oxymoron, as it means "Sorrow Joy".
Since Al's last name is Catone (Chatone in the French version), it's possible that her full name is Lola Felicia Catone.