Beverly Leech Beverly Leech is perhaps best known for her portrayal of Kate Monday on Square One TV’s Mathnet. Her other roles in her extensive television career include Babylon 5, Alien Nation, Star Trek Voyager, northern exposure, Jag, and Modern a Family. She is also the author of ACTOR MUSCLE – Craft. Grit. Wit.: A Professional Guide to the Business of Acting But us quantum leap fans know her best as Catherine Farrington in the 21st episode of season 2, Sea Bride. Albie recently had the pleasure to talk with Beverly about Quantum Leap, her book and career. This interview has a spoiler level of Sea Bride.