'Pretty Little Liars' Season 5 Spoilers: Is Lucy Hale's Brother Mike 'Big A'? Cody Christian Weighs in on Conspiracy Theory

There have been plenty of different theories floating around about who "Big A" is on Pretty Little Liars, but after this week it is looking more like the big bad might actually just be somebody's little brother. In Tuesday, Feb. 3's new episode, Aria (Lucy Hale) became incredibly suspicious of her little brother Mike (Cody Christian) as he has been acting super sketchy since his girlfriend Mona's death. While fans have accused everyone on the series, including stars Shay Mitchell, Troian Bellisario and Ashley Benson of being "A," Christian is just the latest actor to be in the hot seat over the Season 5 conspiracy theory.

The actor sat down with People magazine to talk to them about the latest development on the ABC Family series and whether or not he could really be the hooded villain.

"Well, I'm not going to say no. I think it's possible. That's the thing that keeps the show going: the mystery. You don't know," the star explained to the magazine. "Our writers are so amazing at keeping everything unpredictable and keeping everything fresh. I don't think at this point in the show that anyone is safe from being 'A.'"

While fans don't know the true identity of the mastermind, the magazine previously reported that Keegan Allen, who plays Toby on the show, knows who "A" is, something Cody is extremely jealous of.

"No! I'm going to have to give him a call and tell him to spill the beans because I don't," Christian said of wanting to know who "A" is.

Seventeen magazine is also reporting on the fact that Mike could be "A," giving some key reasons as to why he's a suspect.

First of all, he has broken into people's homes in the past, he's super secretive about his personal life and he also has a really bad temper.

So could Mike really be "Big A"? Fans will just have to tune in to find out ...

Image courtesy Facebook/"Pretty Little Liars"