Kate Walsh, 45, shows her beautiful bikini body on the beach in Miami

Appearing on talk show Bethenny Frankel, Kate said: "This is my last season of Private Practice. '

The admission was greeted with boos from the crowd, and Kate said: "It was an amazing trip and an amazing trip and I am enormously, enormously grateful.

"It's bittersweet.'s A very important chapter of my life. It's been eight years."

However, Kate has said he would be open to returning to Grey's Anatomy, which has made occasional appearances as a guest on boot from private practice.