Thirty years after “Beverly Hills, 90210” first aired, Ian Ziering remains close with his cast mates.

In honor of the iconic series’ big anniversary, Ziering — who played Steve Sanders — described the evolution of his relationships with co-stars including Tori Spelling, with whom he bonds over parenting, and Shannen Doherty, who is battling Stage 4 cancer.

“I’ve been close to Tori for 30 years now. She’s got, I think, five kids now and counting, who knows? She loves being a mom,” the 56-year-old said of Spelling, who is the mom of five children with husband Dean McDermott.

Ziering, who is dad to 9-year-old daughter Mia and 7-year-old daughter Penna with estranged wife Erin Ludwig, praised Spelling’s parenting prowess and how far they’ve come since the show’s premiere.

“She does a great job at it. It’s got to be the hardest job in the world, even just one kid,” he said of Spelling, who played Donna Martin. “I can’t imagine how difficult it would be with five, but she has plenty of room in her heart to make that happen.”

The “Sharknado” actor also opened up about Doherty, whom he texted just last week.

“Shannen’s strong. It’s like nothing’s going on. I know she’s dealing with some adversity right now, but I also know that Shannen’s not going to sleep on it,” Ziering told us of the 49-year-old. “She’s going to have her finger on the heartbeat and the cutting edge of science.

“She’s diligent about whatever she needs to do to make sure she stays in fantastic health,” he said, highlighting her consistent social media workouts.

Ziering also echoed co-star Jason Priestley’s recent comments, saying Doherty, who played Brenda Walsh on the series, “sounded great.”

“Shannen has proved herself to be a fighter on many fronts,” Ziering said, “So I’m confident she’ll continue fighting.”

Though Oct. 4 marks the 30th anniversary of “Beverly Hills, 90210,” the entire cast reunited for a reboot that aired in 2019 but got canceled after one season.

Now, Ziering told us, he has two significant TV moments happening at once: the “Beverly Hills, 90210” anniversary and the Oct. 6 premiere of his new CW show “Swamp Thing.”

“After 30 years of first airing on October 4th, I’ve got two big things happening in one week — it’s amazing how the timeline lines up,” he said.