I was skimming over Heather Morris's interview and I found this:

"There were many people from Konami there, including the director, producer, and several members of the creative team. I remember that after my audition, they were talking among themselves about my name “Heather”. They asked me if that was a common American name and talked about changing the character to be called “Heather.” I think the original name was “Helen” but I cannot remember for sure. I believe I got the call that night that I landed the role and they asked me if I would mind if they named the character after me. I didn’t realize that they were going to use my last name as well."

So... what does this mean? Is Heather's last name NOT Mason? Or did Heather Morris just get confused since it's written in one of the guides?