The 61-year-old Sex and the City actress shared a photo of her brother to Instagram, revealing that he has not been seen since Tuesday, January 30.
Kim tells fans that Christopher's keys, cell phone and wallet were left at his home in Canada. She also revealed that his front door was unlocked.
'This is not like Chris,' she told her followers. 'He would never leave his unlocked home without those items nor his 7 beloved dogs.'
Katie Osmond, Christopher’s stepdaughter, has also taken to social media with pleas to help find him.
'If anyone has any information please please let me know,' she wrote on Facebook. 'I know it’s hard to find people when they’ve gone missing. I’m praying that he comes home safe and un harmed.'
Our thoughts are with the Cattrall family.
Christopher has been found dead hours after Kim's plea.
The actress tweeted, 'It is with great sadness that myself and my family announce the unexpected passing of our son and brother, Chris Cattrall.
'At this time we ask for privacy. We want to thank you all on social media for your outpouring of love and support in this trying time.'