Anyone who has watch Star Trek knows how funny Spock's interactions can become, which was my main idea for including him in this comic.
I had a great deal of fun with him and investigating with the other characters like Hellboy. Probably one of my favorite exchanges between two characters I have ever written. Exchanges like that have no punch lines, they just keep on going and going.
Spock also has that classic nerve pinch that is devastating when used, really it gives him a huge advantage when you think about it.