Astrophysicist, cosmologist, author, science communicator and Cosmos reboot host Neil deGrasse Tyson has signed on for a guest appearance on the Halloween episode of Cartoon Network’s Regular Show. Set to air Thursday, October 27 on Cartoon Network, the episode entitled “Terror Tales of the Park” will see Tyson playing himself in the sci-fi themed episode.

The episode marks one of several times in 2016 that the physicist has played himself in a fictional context, which he also did in Batman v Superman: Dawn of Justice, and Zoolander 2. He also played a parody of himself in Ice Age: Collision Course.

The episode will air as part of a block of new Halloween-themed episodes of Cartoon Network shows, kicking off with The Powerpuff Girls at 5:30 PM, along with new episodes of Teen Titans Go!, Mighty Magiswords, The Amazing World of Gumball and Uncle Grandpa.

The full block of programming is below.

The Powerpuff Girls: “The Squashening” – Thursday, Oct. 27 at 5:30 p.m. (ET/PT)

Mighty Magiswords: “Flirty Phantom” – Thursday, Oct. 27 at 6:30 p.m. (ET/PT)

The Amazing World of Gumball: “The Scam” – Thursday, Oct. 27 at 7:30 p.m. (ET/PT)

Uncle Grandpa: “Costume Crisis” – Thursday, Oct. 27 at 7:45 p.m. (ET/PT)

Regular Show: “Terror Tales of the Park VI” – Thursday, Oct. 27 at 8 p.m. (ET/PT)