Miriam Flynn

Miriam Flynn (born June 18, 1952) is an American voice and character actress. She is known for her roles as Cousin Catherine in the National Lampoon's Vacation franchise and Grandma Longneck in The Land Before Time series. Flynn has also appeared in various films and television series, including a recurring role as Sister Helen on the sitcom Grounded for Life. Prior to her television career, she was a member of the improv troupe Second City in 1975, performing alongside notable actors such as Shelley Long, George Wendt, and Catherine O'Hara. Flynn was also a regular cast member on The Tim Conway Show and starred in her own sitcom, Maggie, on ABC.