AceShowbiz -

FXX's "The League" is looking forward to ending with a high note, thanks to Seth Rogen and Jason Mantzoukas. The funny duo will re-appear in an episode of the ensemble comedy's last season.

Rogen and Mantzoukas have been recurring on the show since 2011, playing Dirty Randy and Rafi respectively. Rafi is the brother-in-law of series regular Nick Kroll's Ruxin while Randy is a librarian who lives up to his name. Rogen and Mantzoukas have also written several episodes including last year's "When Rafi Met Randy".

In the upcoming episode, Rafi and Randy will encounter the entire lead cast. Executive producer Jackie Schaffer is directing the episode, telling EW "If people think the last two Rafi/Dirty Randy episodes have shocked them, this is a whole new level. It's practically inhuman."

Kroll previously discussed the guest stars to Observer. "We've got a bunch of fun guest stars. Obviously the NFL players, but like Rob Riggle, Ike Barinholtz, Seth Rogen, Leslie Bibb is back, a lot of Mantzoukas. I'm really, actually ...I feel like we have some really funny, good stuff coming this season."

The season finale premieres September 9 at 10 P.M. ET.