A pair of familiar faces are coming to Scandal.

Josh Randall (Ed) and Mary McCormack (In Plain Sight) will appear on an October episode of the ABC smash, portraying some kind of power couple.

Not much else is known about their characters, but it's safe to assume they will interact in some way with Olivia.

McCormack is no stranger to D.C., having played a key role on The West Wing for years; while Randall has also stopped by Greek, Scrubs, Grey’s Anatomy, Castle and Masters of Sex.

Other upcoming Scandal Season 4 guest stars include Portia De Rossi (in a top-secret arc) and The Newsroom‘s Kelen Coleman (who appears in the September 25 premiere).

Need to catch up before this Shonda Rhimes drama returns?

You can always (and easily) watch Scandal online.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.