There were no Rooney twins when Dove Cameron was first cast in Liv and Maddie.
Dove effortlessly brought the both the roles of Liv AND Maddie to life on the Disney Channel series but originally, she was supposed to play a totally different character, since the twins weren't even an idea at the time she was cast.
"It didn't start out with me playing twins! So when I came on set, I didn't think I was going to be able to do it. I was a nervous wreck, because I didn't audition to play the twins. I only auditioned to play one person, it was a completely different show in the beginning," Dove explained to Young Hollywood. "I played one girl named Alanna who is neither Liv nor Maddie, and she didn't have a twin – there was no twins. We went away for testing after we filmed the pilot and everybody got to say [what they wanted more of.] So the day I found out we got picked up, they were like, also it's about twins, and you're the twins!"