Black Mass provided two deep roles for two very deep actors.

Of course, there was incredible transformation of Johnny Depp in the dark role of James “Whitey” Bulger for Black Mass.

Depp had to endure hours in the makeup chair to achieve his menacing look for Black Mass, which included a white receding hairline wig and contact lenses.

Benedict Cumberbatch, who plays Whitey’s brother, William “Billy” Bulger, didn’t have a huge physical transformation, but he did have to study up on American politics for Black Mass. He didn’t, however, come away with a taste for the whole racket.

He said, “This role didn’t give me a taste of politics.”

“The last thing I would do, if I was planning to harm you, would be to warn you in advance.” #JohnnyDepp #BlackMass #NowPlaying

A photo posted by Black Mass (@blackmassmovie) on Sep 19, 2015 at 5:27pm PDT

He added, “American politics is a whole different thing. I had to do quite a bit of learning what a state senate and a president of a state senate actually does and what it means.”

#JohnnyDepp transforms into Whitey Bulger in a new #BlackMass featurette. Watch it exclusively on @imdblive: [link in bio]

A photo posted by Black Mass (@blackmassmovie) on Sep 10, 2015 at 12:06pm PDT

That doesn’t mean Benedict Cumberbatch didn’t enjoy working on Black Mass.

In fact, he rather enjoyed the location. He said, “It gave me a taste for Boston, though. It’s an amazing place. I had a great time doing this and prepping for it.”

Now, why wouldn’t Benedict Cumberbatch gain a love for American politics after filming Black Mass in Boston? I mean, come on. It’s ever so attractive right now, right?

What do you think about the transformation of Benedict Cumberbatch and Johnny Depp for Black Mass?