McKidd has helmed some of Grey’s webisodes, which likely led to this new development. It’s unclear what will happen in the 13th episode, but McKidd isn’t the first employee of Seattle Grace to sit in the director’s chair. Chandra Wilson (Dr. Miranda Bailey) also got a chance.
The Scottish actor – who previously appeared in Journeyman and Rome – has been on Grey’s since 2008.
Source: Hollywood Reporter - Entertainment Weekly