Thought you all might like a cast of characters as it might get a little confusing. The character on the show is in italics.
"SerJen"
Callie Torres – Serafina Ruiz
Arizona Robbins – Jenna Carver
"ParkEm"
Meredith Grey – Emma Pomfret
Derek Shepherd – Parker Donnelly
"SuKee"
Cristina Yang – Susanna Oden
Owen Hunt – Keenan McTavish
"CartEl"
Mark Sloan – Elliot Davis
Lexie Grey Sloan – Carter Pomfret
"TomKat"
George O'Malley – Tom Knudson
Izzy Stevens – Kat Hendricks
Miranda Bailey – Charissa Williams
Alex Karev – Jason Chaplin
April Kepner – Sherry Dawson
Jackson Avery – Jamie Wilson
Teddy Altman – Kit Roberts
Richard Webber – Jake Pinson, Jr
Addison Montgomery – Katherine Wallace
Erica Hahn – Brianna Stone