AceShowbiz -

Michael Bay has published another teaser image for his upcoming highly-anticipated project. This time, he unveils a first look at an Autobot that is set to make its first grand appearance in "Transformers 4". Ready to be featured alongside upgraded Optimus Prime and vintage Bumblebee is Hound, "the rugged and reliable" one as written in the caption of the pic.

Hound has only appeared in the video game and toy line related to the "Transformers" film series. With the arrival of the Autobot scout in the film, fans anticipate Drift and Decepticon Galvatron, which are rumored to make their on-screen debut as well. There is still no word on whether they will join newbie Hound in the robotic family or not.

Mark Wahlberg is set to headline "Transformers 4", which will take place four years after the events in "Transformers: Dark of the Moon" and is said to be darker than its predecessors.

Wahlberg will be face to face with Kelsey Grammer, who will villainize the action-packed flick. Stanley Tucci, Jack Reynor, Nicola Peltz, Li Bingbing and T.J. Miller are on board for supporting roles.

Ehren Kruger serves as the writer for the movie, which will invade theaters across the nation on June 27, 2014.