Mia Montgomery is the younger sister to Addison Montgomery. In New York mia was having an affair with Derek shepherd. They fell in love and he was the only man that she had been with but when Derek left after finding out about mark and Addison it br...
Ellie O'Donnell as Mia Montgomery "You left..you left me and you have no idea what went down"
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Patrick Dempsey as Derek shepherd
"It's always been you Angel. You know I love you"
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Rebecca Louise as esme Montgomery "Just don't let him break your heart"
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Kate Walsh as Addison Montgomery "Just because you Sleep with my husband doesn't mean anything"
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*** The rest of the greys anatomy cast as themselves; Justin chambers as Alex karev Sandra oh as Cristina yang Katherine heigl as izzie stevens T.R knight as George O'Malley Chandra Wilson as Miranda Bailey Erin Dane as mark Sloan
** I own Mia Montgomery and her storyline and any children she has. Esme Montgomery and and children she has belongs to _X_Sammii_X_ everything else belongs to the producers of greys anatomy; Shona Rhimes and Krista vernoff
