Gossip Girl mini-reunion: Leighton Meester joins Jessica Szohr on The Orville 

mini-reunion: Leighton Meester joins Jessica Szohr on

Leighton Meester will guest-star on Fox’s space adventure series, which recently added Jessica Szohr as a full-time cast member, EW has learned exclusively.

Meester will share scenes with Szohr, who plays a new crew member aboard the U.S.S. Orville. Details about Meester’s role weren’t made available at this time.

is set to blast off for season 2 on Sunday, Dec. 30 at 8 p.m. ET/PT, though a regular time slot for the series has not yet been announced. (The show aired on Thursday nights last season.) The episode featuring Meester is slated to air early next year.

Meester, who will appear this fall in the ABC comedy

, has ties to Fox: Last season, she starred on the short-lived Fox comedy

guest cast roster that in season 1 included Charlize Theron, Liam Neeson, and Rob Lowe.

team will journey to San Diego on July 21 for a Comic-Con panel that will offer up a first look at season 2.