The 25-year-old's character Siobhan endured a horrific sex attack in the most recent series of the award-winning show.
But while her portrayal might have earned her an IFTA, the brutal rape scene turned out to be too much for the Wexford born actress's father.
"My dad finds Love/Hate gruesome and I can understand why," said Charlie.
"It'd be hard to watch your kid on TV doing something like that. Mum watches it and she is fine with it, but Dad finds it difficult."
Charlie said she took her role in the show very seriously and carried out her own research
"The rape scene was obviously a big talking point and it was important to get that right.
"I spoke to people who work at Rape Crisis to make sure I was on the right track. We knew it would be controversial but it was important to the script."
Given Love/Hate's huge popularity, Charlie has been getting used to attracting attention from fans.
"Teenage girls usually ask me whether the boys in Love/Hate are good kissers," she said.
"Then older people ask if I am okay now after everything that happened. Some people really do seem to think the stuff they see on TV is real."