Mark-Paul Gosselaar: Four Kids Is 'Enough'

The actor says his brood with wife Catriona is complete

Mark-Paul Gosselaar Welcomes Daughter Lachlyn Hope

The actor welcomed his fourth child, a daughter, on the night of Tuesday, Feb. 17, he announced Wednesday on Twitter

#TBT: See PEOPLE's Saved by the Bell 2009 Cast Reunion

It’s been more than two decades since fans bid farewell to Saved by the Bell and TV’s beloved gang of teenagers, but before Jimmy Fallon brought together some of the cast for a skit on The Tonight Show on Wednesday, PEOPLE had a Bayside reunion of our own.

Jimmy Fallon Reunites the Saved by the Bell Cast (VIDEO)

Fourth Child on the Way for Mark-Paul Gosselaar

“It’s something we’re really excited about and we’ve been planning for awhile,” the actor tells PEOPLE.

See the Official Poster for the Unauthorized Saved by the Bell Movie

The wait is almost over for Saved by the Bell fans. The hotly anticipated The Unauthorized Saved by the Bell Story is less than a month away and Lifetime has released its official poster exclusively to PEOPLE.

Featuring the actors who play the six main characters Jessie Spano, Lisa Turtle, Kelly Kapowski, Zack Morris, A.C. Slater and Screech Powers, the new image also includes the show’s iconic principal Mr. Belding.

The Unauthorized Saved by the Bell Story Trailer Is Out – Watch It Now

Hard-core Saved by the Bell fans have been waiting 20 years for this.

Lifetime has released the first glimpse from The Unauthorized Saved by the Bell Story, but so far, there’s nothing scandalous – the trailer depicts a normal group of teenagers dealing with hormones.

It's All Right: Saved by the Bell Goes Back to School

Hey, hey, hey, hey – what is going on here? This year marks Saved by the Bell’s 25th anniversary: The show, which premiered in August 1989, has spent nearly a quarter century in the pop culture matrix.

Mark-Paul Gosselaar Jokes: My Kids Love Their Baby Brother, Just Not Each Other

“They still hate each other, but they love the baby, so all the love now goes to Dekker,” Gosselaar, 40, joked to PEOPLE.

Elizabeth Berkley Is Still Really Close to Her Saved by the Bell Costars

As Zack Attack sang on Saved by the Bell, Elizabeth Berkley and her former costars are indeed “friends forever.”

“It’s amazing,” Berkley, 41, told PEOPLE backstage Monday at Dancing with the Stars. “I don’t know if you have people from high school who you’re still close with, [but] even if we don’t see each other for a long time, it’s a connection that we’ll have forever.”