Letterkenny Bonnie McMurray's Various Costumes The Letterkenny is a charming town with a deep-rooted feeling of togetherness. Everything about Letterkenny, County Donegal is special, especially its residents. One particular resident who has stolen the hearts of many is the delightful Catherine. Katrina brings love and joy to Letterkenny with her captivating presence. She is cherished by everyone who crosses her path. Letterkenny, County Donegal Katy is a match made in heaven!