The Hollywood Reporter: How long before the summer finale reveal were you informed that that was where your character was going?
Keegan Allen: I found out pretty early on in the season that they were going to change this character from being the moral compass, the good boyfriend, to a betrayer. If you remember in the first season, he was an outcast. Everyone thought he had murdered Alison, he didn’t have that great of a following in the school. He turned it all around, started to date Spencer and started to have this wonderful relationship. The writers thought it would be an amazing idea, and I thought it was a great idea to not only betray the people in the realm of Rosewood but to betray the audience as well. I’m pleased the way it came out.
THR: Now that viewers are in on Toby’s “A” connection, his scenes with Spencer and the rest of the girls have an added tension to them. Should we expect him to commit even darker crimes or “A” acts in coming episodes?
Allen: That is why I love playing this character so much is because you never really know what he’s capable of. In order to fully understand where he would go, I like to step into his shoes and say, well, what is the worst thing a person could do? He really is on this fine line of being a very dangerous villain on the show and also keep his anonymity with his peers with Spencer and girls. At this point, no one knows [outside of Mona]. He will be found out; it’s in a really painful way. When I say painful, it’s emotional. He is responsible for a lot of issues that happen later on in the season. It’s one of those things you have to watch and find out. He is very active in taking part in the destruction later on.