Fans of the Grant Morrison/Darick Robertson comic book mini-series Happy! were cautiously waiting for their first look at Syfy's series adaptation when it was first announced to pilot in September 2016. Adding to the growing interest was the announcement that Patton Oswalt (Marvel's Agents of S.H.I.E.L.D.) would be joining the cast, with rumors that he would be replacing Bobby Moynihan (Saturday Night Live) as the voice of the title character.

Syfy addressed both of these issues this week, releasing the first teaser trailer for Happy! and confirming that Oswalt has indeed replaced Moynihan as the voice of Happy.

Here's your first look at Christopher Meloni's (Law & Order: SVU) Nick Sax in Happy!:

Happy! is based on New York Times best-selling author Morrison and Robertson's graphic novel of the same name. The series follows Nick Sax, an intoxicated, corrupt ex-cop turned hit man, who is adrift in a world of casual murder, soulless sex and betrayal. After a hit gone wrong, his inebriated life is forever changed by a tiny, relentlessly positive, imaginary blue-winged unicorn named Happy (Oswalt). Joining Meloni and Oswalt for the 10-episode season commitment are Patrick Fischler (Twin Peaks: The Return) as Smoothie; Ritchie Coster (True Detective) as Mr. Blue; Zabryna Guevara (Gotham) as Amanda Hansen; and Joseph Reitman (Money Monster).

Actor/comedian Moynihan was originally cast as the voice of Happy and even recorded the character's lines for the pilot, but Moynihan's commitment to his CBS series Me, Myself & I created a scheduling conflict and forced him to step away from the Syfy project. Series executive producer Morrison, who also co-wrote the pilot with writer/director Brian Taylor (Jonah Hex, Crank), addressed the issue with Syfy Wire at this year's Comic-Con International (SDCC):

"Bobby was great when he did the reading. But as you know, he's got his own show now, and he just couldn't commit to it in the way that we hoped. But yeah, he did an amazing reading of the character. But Patton is a whole new thing. He's playing it in a kind of different style, and it's really interesting."