10 of 24
Lori Grimes, 'The Walking Dead'
Played by: Sarah Wayne Callies
Jan. 31, 2013
Why we'd dump her: For sleeping with Rick's best friend while he was in a coma. No, we don't care that the world was being overrun by zombies. Not even her heart-wrenching death scene can completely make up for her annoyingness up until that point.