Mary McCormack, Josh Randall Will Guest Star on 'Scandal'

Photo Credits: Gabriel Olsen/Getty Images, Brian To/FilmMagic

Mary McCormack and Josh Randall have landed guest-starring roles on ABC political serial Scandal.

They will play a couple in an episode slated for early October. Further details on their roles are being kept under wraps for now.

Randall has previously appeared on two other Shonda Rhimes shows, Grey's Anatomy and Private Practice, though he played two different roles.

The Season 4 premiere of Scandal airs September 25 at 9 p.m. ET/PT on ABC.