Jane Seymour says she’s ‘in my prime right now’ at 74 The 74-year-old actress told Fox News Digital she is "grateful" for her health and to still have a career in Hollywood. NEW You can now listen to Fox News articles! Jane Seymour celebrated her 75th birthday with her former "Dr. Quinn, Medicine Woman" co-stars. Although the actress’ actual birthday is February 15, the star celebrated with her former co-stars Joe Lando, Jessica Bowman, Brandon Douglas, Jonelle Allen, Frank Collision, Jason