Jerry Seinfeld, Mark Hammil, and Joel McHale have all confirmed they will appear on the rebooted version of “Mystery Science Theater 3000.”

All three actors said via Twitter that they had accepted series creator Joel Hodgson’s invitation to make a cameo on the new season of the show, which is being funded by a Kickstarter campaign. Hodgson also tweeted that he had extended invitations to Bill Hader, Neil Patrick Harris, and Jack Black to appear on the show as well.

In addition, “Mythbusters” star Adam Savage has agreed to join the show to consult on the practical effects that will be required for the new season.

Also Read: Dan Harmon to Write for 'Mystery Science Theater 3000' Reboot

The four are the latest high-profile additions to the show. Dan Harmon, the creator of “Community” and co-creator of “Rick & Morty,” has agreed to serve as a guest writer on the show.

Harmon will be joined by: Justin Roiland (“Rick & Morty”); Rob Schrab (“The Lego Movie Sequel”); Nell Scovell (“The Muppet Show”); Ernie Cline (“Ready Player One”); Pat Rothfuss (“The Name of Wind”); musical act Paul & Storm; comedian Dana Gould and EGOT winner Robert Lopez (“Book of Mormon,” “Frozen”).

Patton Oswalt also recently joined the project to write and play TV’s Son of TV’s Frank, the offspring of the character TV’s Frank from the original show, as played by Frank Conniff. Other new cast members include Felicia Day, Hampton Yount, Baron Vaughn, and Jonah Ray.

Also Read: 'Mystery Science Theater 3000' Creator Reveals How Elton John Inspired Cult Phenomenon

“Mystery Science Theater 3000” launched on a Minneapolis UHF station in 1988, featured Hodgson and later Mike Nelson and two robot sidekicks as they riffed on cheesy B-movies by providing their own hilarious commentary.

It then moved to Comedy Central and finished its run on the Sci-Fi Channel (now Syfy) in 1999 after 197 episodes.

Can’t wait Joel! Thank you. In the meantime I think we should all pitch in & get Bill a @twitter account. https://t.co/z1Ptw3Gp2Y – Joel McHale (@joelmchale) December 10, 2015

Yes yes yes yes yes yes yes yes yes yes yes yes yes yes. Very excited to be part of #BringBackMST3K! https://t.co/7fsafjJtA0 - Adam Savage (@donttrythis) December 10, 2015