Hoechlin, who plays Derek in the MTV series, told TV Line that the show is not that similar to the 1985 Michael J. Fox movie upon which it is based.
"We're nothing like the film," he said. "The movie was this great campy comedy and a cult classic, but our show is much darker."
Hoechlin continued: "It's a gritty, horror genre series with a little Romeo and Juliet action thrown in. We still have a comedy element, but it certainly doesn't make up the whole show.
"There's a little bit of everything, and that's what makes the show so great. It's also not pinpointed to one demographic age-wise, so there's something for everyone."
Hoechlin also suggested that all of the characters will have plots during the season, saying: "There are so many arcs. We're really giving each character its own storyline, which is interesting for the audience because you're not just getting locked into one arc.
"In fact, Scott [Tyler Posey] really has conflict and plot going on with every person he interacts with, so it's interesting to watch."
Posey has previously promised "blood, shirtless men and mystery" in the series, while the show's creator Jeff Davis has revealed that there is a lot of humour in the episodes.
Teen Wolf airs on Mondays at 10/9c on MTV in the US and will begin in the UK in July on Sky Living.
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Watch a trailer for Teen Wolf below: