Lucas and Sarah - fan or foe?

[LucasNorthFan]

They don't have chemistry not even to make me believe they at least liked each other. As Kirmostar said, RA could develop chemistry with a rock (hope you're feeling better almh ) so I don't know what is it with GO'R
Sometimes I thought 'this is Spooks, there's no much time to show too much romance or develop it' but if you say with previous character you believed their feelings, then it isn't the writing, is just her.

Just look at Elizavetha, the first ep she appeared I wasn't sure I liked her, with the next eps she grew on me, I believed she cared for Lucas and felt sorry for him but knew she had moved on, had a family, he had to let her go.
You don't need kisses, bed scenes and/or endearments to believe in a relationship, in Elizavetha and Lucas' eyes I saw caring and affection, that's all I needed.

I (and in another RA forum, I've read the same question) wonder HOW was she cast. Did she read with RA at some point? She read alone, they liked her accent , they liked her coldness and emotionless face and believed she was right for the part? She only read the apartment scene from ep 4 with RA - that I must admit that one with the scene where she kills her boss are only ones I like from her- so they thought she was good?

LNF
(Thank you so much for this rant-thread JHyde, I feel a little better)