"That's very challenging. It's a personal thing," Ziering -- who was promoting his upcoming movie, Zombie Tidal Wave -- expressed. "We all were very close to him. Luke was a best friend to me, not just when we were on 90210 but even before that. I knew him from when we were doing soap operas in Los Angeles."
"So it continues to be challenging and it's always very difficult, but we will find a way to do it right," he added.
"Everyone seems so incredibly excited to be working together again. There are really positive vibes and a certain appreciation by the whole cast to be reunited after Luke's passing," the source said at the time. "They all want to ensure Luke's memory lives on through the show. They are totally dedicated at this point to making the show its best."
This video is unavailable because we were unable to load a message from our sponsors.
If you are using ad-blocking software, please disable it and reload the page.
How the 'Beverly Hills, 90210' Cast Is Feeling as They Film Reboot After Luke Perry's Death
The new BH90210 also includes Jennie Garth, Tori Spelling, Brian Austin Green, Jason Priestley, Shannen Doherty and Gabrielle Carteris. The stars will play heightened versions of themselves inspired by their real lives and their relationships with each other.
"We left ourselves vulnerable. We're going to dive into some of the personal issues that we, as a cast, have dealt with in our own lives," Ziering told ET about the storylines. "But it's not going to be on the nose, it'll be kind of on the cheek."
Aside from gearing up for the revival, Ziering is also excited to release his passion project, Zombie Tidal Wave. Set to premiere on SYFY on Aug. 17, the actor had been putting the film on hold while he was filming more Sharknado movies.
"I pitched this movie four years ago to SYFY and they greenlit it, but it took this many years to get into production because we kept shooting Sharknados," the actor shared. "It's epic!"
"There's thousands [of zombies!]," he added. "What's special is these are not your usual zombies. You can't kill my zombies. Cutting the head off, the mouth can still bite you. Chop the arm off, the hand can still strangle you. It's kind of like that."