Sam in Private Practice. He was always a narcissistic arsehole, but the episode when Amelia has her baby and he refused to be the surgeon to remove the baby's organs for donation because it was "killing a child", the babe had no fucking brain you utter twit!! And then the flip flopping and head fucking with Addison when she wanted a baby. Get in the bin. Addie the baddie deserved better, I'm so glad that was close to the end of the show.
Izzy in Greys, I'm so glad she got wrote out her character was so wet and pathetic. Erica was a biphobic bitch too.