- Ellen Pompeo (Meredith Grey)
- Chandra Wilson (Miranda Bailey)
- James Pickens Jr. (Richard Webber)
- Caterina Scorsone (Amelia Shepherd)
- Camilla Luddington (Jo Wilson)
- Kevin McKidd (Owen Hunt)
- Kim Raver (Teddy Altman)
- Jason George (Ben Warren)
- Chris Carmack (Atticus Lincoln)
- Anthony Hill (Winston Ndugu)
- Adelaide Kane (Jules Millin)
- Alexis Floyd (Simone Griffith)
- Niko Terho (Lucas Adams)
- Harry Shum Jr. (Benson 'Blue' Kwan)
- Trevor Jackson (Wes Bryant)
Grey's Anatomy — S0E36
Episode: S6 - Seattle Grace: On Call (Part 1) - I Want A Paternity Test
Air Date: 2010-09-14
Runtime: 5 min
Overview
Megan awkwardly deals with the uncertainty of whether the father of her baby is her husband Steve or ex Pierce while the other interns flirt and banter in Joe’s bar.