Now you see I do have a problem with Petra. I was prepared to grant her the benefit of the doubt for a long time for the reasons that have been mentioned, but she hasn't displayed any kind of depth to her performance. I realise that the material that has been written for her has been awful, but to me she doesn't look like she's even trying. She rattles off her lines in a very flat, dull voice - there are hardly any inflections in her speech, she sounds quite robotic to me. She has had opportunities where she could have shown a bit more emotion - some of the scenes with Jesse, even if we disagreed with her she could have made herself come across a little more vulnerable.
There have always been unpleasant characters. On Casualty, I seriously dislike Louis Fairhead - he's just unpleasant, without any redeeming qualities at all, and though I realise that he's supposed to be controversial in a way that Adele isn't, I think he has been intended to be more three-dimensional than he has actually turned out to be. However, I think that Gregory Foreman does the best job he can under the circumstances. It was the same with the awful nurse Jessica - she was probably one of the most disliked Casualty characters of all time, but Gillian Kearney to her credit brought something to the role that made you feel something for her at times. You could say the same for some of the Holby City actors - Patsy Kensit, La Charne Jolly, Laila Rouass, Tina Hobley and Jules Knight all played characters who were quite disliked, but I have no issue with any of them as actors. Petra Letang just doesn't have that. Bad material can let an actor have the benefit of the doubt a few times, but it isn't an excuse to be totally wooden all the time. You might not be able to save the character, but you should have a bloody good go at it.
Incidentally, did anyone realise Petra Letang is 36 years old? I may not like her acting style, but I'll say one thing for her, she looks good for her age. I thought she was late twenties if not younger.