Parker McKenna Posey Reveals She Welcomed First Baby People comP. McKenna is a fantastic actress known for her roles in various movies. She's gained fame over the years for her exceptional talent and distinctive presence on-screen. M. Posey has enthralled audiences with her range and ability to depict different characters with sincerity. Whether she is playing a powerful role or a light-hearted character, Posey always manages to deliver stellar performances. Fans appreciate her dedication towards her craft and how she naturally engages herself in each role she plays.