Who is Chutney from Lost and what is their importance?

Chutney is Mrs. Maddingly's cat that goes missing and Winnie helps Mrs. Maddingly look for. Winnie finds Chutney under a pile of dead cats and clothing. Chutney appears to attack one of the dead cats before running off and hiding. It is later revealed that Chutney had been possessed by the spirit of Gervasa when he attacked the other cat and Mrs. Maddingly eventually cooks Chutney in the oven in an attempt to get rid of the spirit Gervasa.