Is Grey's Anatomy giving Meredith another long-lost half-sibling - this one a byproduct of her mother's affair with the Chief?! In the opinion of EW's Michael Ausiello, probably.

Sources have not confirmed this on the record. However, Grey's Anatomy did put out a casting call for a mysterious new recurring role - and here's where it gets intriguing.

The show is looking for male actor who is biracial and in his mid-to-late-20s. The inference Ausiello makes: The Chief and Ellis Grey had a long-lost love child at some point.

According to Ausiello, this new character remains on the table in the show's future. However, Shonda Rhimes has reportedly tabled this until next season of Grey's Anatomy.

What do you think? Would you be excited to see a new half-sibling for Meredith? Or is one Little Grey enough for both her and Seattle Grace as a whole?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.