In a heartbreaking Instagram post, the Waitress star paid respects to her dad, Daniel, and voiced her sadness over his sudden passing.
"I can't believe I'm even writing this.... But it is with heavy heart that I share that my sweet sweet Papa left this earth yesterday morning. We as a family are completely heartbroken and devastated," she wrote, along with two photos of the two together.
"He was my biggest fan, my biggest champion, always telling me to 'Give em hell kid!' He was so kind and caring and made sure we knew how much he loved us. Not sure my heart will ever be the same," added the actress.
McPhee, 34, then mentioned her regrets, saying she wished her dad had seen her perform on stage in NYC before he died, as he was her biggest supporter.
"I'm so sad he missed my broadway debut. But when I return to the stage next week I hope he can watch it in peace and from up above. Thank you to all my friends who've been so loving and supportive these last 48 hours. I love you Papa. I already miss you so much. This hurts," she concluded.
As RadarOnline.com readers know, McPhee got engaged to much-older producer Foster, 68, two weeks ago, when the two were touring the romantic Italian island of Capri. Ever since, they have confirmed the happy news, gushed about one another on social media, and posted photos of their steamy love.
Sources even told Radar that McPhee is already hoping to get pregnant before their May-December wedding.
Sadly, her late father will no longer be able to attend.
We pay for juicy info! Do you have a story for RadarOnline.com? Email us at firstname.lastname@example.org, or call us at (866) ON-RADAR (667-2327) any time, day or night.