The two-hour premiere of Grey's Anatomy will feature two well-known guest stars.

The Hollywood Reporter confirms that Bobby Campo (Being Human) and Heather Hemmens (Hellcats) have booked roles on the September return episode of this ABC drama.

The actor and actress will play an engaged couple - Campo a fireman, Hemmens a police officer - who viewers meet at the scene of an accident. No further details have been revealed, but it's possible the character stick around beyond the premiere.

ABC announced this week that Grey's Anatomy Season 10 will kick off on Thursday, September 26.

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