Zack Morris, Jessie Spano sign on to 'Saved By The Bell' reunion

Mark-Paul Gosselaar

Credit: TNT

Of all the wondrous miracles "Late Night with Jimmy Fallon" may promise and aspire to, reuniting the main cast of "Saved By The Bell" may now be the most attainable. Last night, Mark-Paul Gosselaar, or, rather, Zack Morris, stopped by the show to promote his new TNT show "Raising The Bar," donning the acid wash, the high tops, and sporting the brick-sized mobile phone. SBTB co-star Jessie Spano, aka Elizabeth Berkley, "called" Zack to let him know she was game.

That puts the headcount for the reunion at Zack, Jessie, Mr. Belding (Dennis Haskins), A.C. Slater (Mario Lopez) and Lisa Turtle (Lark Voorhies), every one of them agreeing to a reunion on Fallon's NBC show since the show's utterly important petition began in late March. The only hold-outs are Screech (Dustin Diamond) and, naturally, Zack Morris' "ex-wife" Kelly Kapowski (Tiffani Thiessen.

Fans are encouraged to sign an online petition, to urge the Bayside class reunion to take place.

The last episode of the original "Save By The Bell" series aired in May, 1993, before the merciless 1994 spin-off "Saved By The Bell: The College Years," which lacked Berkley.

Check out the full clip from last night's show below: