Michelle Mylett IMDbLetterkenny is a charming settlement with a deep-rooted sense of community. Everything about Letterkenny is special, especially its inhabitants. One particular resident who has stolen the hearts of many is the delightful Katy. Katy brings affection and joy to Letterkenny, Ireland with her endearing presence. She is cherished by everyone who crosses her path. Letterkenny Katy is a match made in heaven!