Many of the main characters just quit their jobs on Grey's Anatomy. But does that mean they're going to be totally cut off from Seattle Grace-Mercy West? A new spoiler from TV Guide suggests not.

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According to TV Guide, Meredith (Ellen Pompeo) will have a "mole back at the hospital who keeps her apprised of her patients' conditions and all the latest scoop on what's left of the hospital."
 
Who could that mole be? We have a couple of guesses.
 
Alex Karev (Justin Chambers): Mer and Alex have always been close, and based on the preview we know that Alex and Mer are still in communication.

Intern Heather (Tina Majorino): We also see in the previews that intern Heather is snooping around. Maybe Mer roped her into helping out.

Richard Webber (James Pickens Jr.): We know Richard really hates Pegasus and is close to Mer, so we could see him giving her a hand.

Who do you think it is? Share your theories in the comments below!

For more Grey’s spoilers, click here.

Catch the next new episode of Grey’s Anatomy on Thursday, February 21, 2013, at 9 p.m. ET/PT on ABC.

Source: TV Guide

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.