From her great-great-grandfather Frank Keenan, a Shakespearean and silent film actor, to her great-grandfather Ed Wynn, grandfather Keenan Wynn, and uncle Tracy Keenan Wynn; Jessica is the fifth generation in a show business dynasty. The Wynn family, the Barrymore family, and the Power family, are the only families who have preserved and extended their theatrical lineages for over 100 years. She is best known for Mamma Mia! Here We Go Again (2018), and Forever (2014).

从她的曾曾祖父弗兰克·基南（Frank Keenan），莎士比亚和无声电影演员，到她的曾祖父埃德·怀恩（Ed Wynn），祖父基南·怀恩（Keenan Wynn）和叔叔特雷西·基南·怀恩（Tracy Keenan Wynn）;杰西卡是演艺界王朝的第五代。Wynn 家族、Barrymore 家族和 Power 家族是唯一保留和扩展其戏剧血统超过 100 年的家族。她最出名的是《妈妈咪呀！Here We Go Again（2018 年）和 Forever（2014 年）。