United Kingdom, Jan. 22 -- Kaley Cuoco was "really scared" to leave her daughter for work.

The Big Bang Theory star - who has two-year-old daughter Matilda with her fiance Tom Pelphrey - was away from home for two months last year as she filmed new mystery thriller series Vanished, and she has praised her partner for making it easier.

She told Extra: "I have to say I was really scared. Like, I had a two year old and I was like, 'Should I be, like, leaving for two months?'.

"I just didn't know if that was the right decision. My fiance was just like, 'You've got to go. I think this is going to be amazing for you.'

"So, he really encouraged me to go, and he took care of everything and we kind of swapped places for a minute and I couldn't...