"What’s an apology without accountability?" Bryan Hearne asked. After the third and fourth episodes of Quiet on Set: The Dark ...

The photos include screenshots of various articles questioning whether or not the show is returning. The "Thelma Stump" sketch airs on All That on Saturday at 9 p.m. E.T./P.T. on Nickelodeon.

who appeared on the beloved sketch show from 1996 to 2000, tells PEOPLE exclusively. In addition to meet and greets, there will be photo opportunities available for purchase with the All That cast ...