Dean McDermott is keeping a close eye on the comments section of Tori Spelling’s Instagram account.

RELATED: Tori Spelling And Dean McDermott Have ‘Started Counseling’

McDermott, 52, recently defended his wife and her “BH90210” co-stars. Spelling posted a makeup-free bikini photo of herself, Jennie Garth and Gabrielle Carteris on Sunday in Vancouver. “Sunday Family Dinner” she captioned the photo.

One user criticized the trio for “trying too hard to be relevant,” eliciting a response from McDermott. “I love how you haters have private accounts!” the “Slasher” actor replied. “Let’s see what you trolls look like ya cowards!”

This is far from the first time McDermott has defended Spelling against online trolls. In March, he clapped back at those who criticized Spelling for feeding her kids muffins and defended her and the family against body-shamers in January.

RELATED: Tori Spelling Opens Up About Parenting With Dean McDermott

“BH90210” premieres Aug. 7.