I agree.
She's a horrible actor (at least on this program).
I'm sure we're supposed to care about her son soon, to make us somewhat sympathetic to her character, but ugh in general.
And not just talking about Mosley, but actors on just about every show....why in the heck do TPTB insist that women with short legs wear extremely high heels? It doesn't work! They lumber around like Paul Bunyon, swinging from side to side looking like someone about to go into labor. The 'clunk clunk clunk' drives me nuts. It doesn't look sexy, it looks ridiculous.
I rather hope she's killed off (or chooses to retire) in some team action to rescue her son from an evil kidnapping father.
OTOH, I love the other new character, Harley.