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Mary McCormack, Josh Randall

Gabriel Olsen/Getty Images, Brian To/FilmMagic

Pour yourself a glass of wine, Scandal fans, and help us toast the newest guest stars on the Season 4 roster!

Josh Randall (Ed) and Mary McCormack (In Plain Sight) will appear on the show for an episode in early October, and will play a couple, E! News has confirmed. That's all we know. Any other details on their appearance are being keptas most Scandal details usually areunder wraps.

McCormack is best known for starring as Mary Shannon on In Plain Sight, but has also had memorable roles on The West Wing and last season's shortlived sitcom Welcome to the Family. 

Randall is probably most remembered for his roles on EdGreek, or any number of appearances on ScrubsPushing DaisiesGrey's AnatomyCastle, and most recently, Masters of Sex.  

It was already reported (or leaked, thanks to Ellen DeGeneres!) that Porta de Rossi has signed on for a top secret, multi-episode season 4 arc that we can hardly wait for, so season 4 is just looking better and better every day!

Scandal returns September 25 at 9 p.m. on ABC.