United Kingdom, Sept. 30 -- Mario Lopez has remembered Dennis Haskins as "the biggest kid" on the set of Saved By The Bell.

The 52-year-old actor, who played AC Slater on the classic '90s sitcom, has paid a heartfelt tribute to his late co-star, who died on September 27, aged 76.

He wrote on Instagram: "Heartbroken to hear about my old friend Dennis Haskins.

"He played the principal, but Dennis was the biggest kid on the SBTB set. If you knew him, you loved him - and if there was karaoke, you knew Dennis was getting on that mic!

"I'm grateful for the laughs, the memories, and the friendship we shared all these years. Rest easy, my friend. You'll always be part of our Bayside family."

Leanna Creel, who joined Saved By The Bell as Tori...