While images and videos of all the other characters of Transformers: Age of Extinction have been doing the rounds of the internet, it's about time we shined a light on Kelsey Grammar, who plays the main antagonist.

Michael Bay Teases Release of Full-Length Trailer.

A bespectacled Grammer dressed in a crisp white shirt and tie, wearing a full beard and moustache, was spotted on the set last year. He was seen sitting behind the scene of the action, which captured a whole bunch of people running from something.

Grammer was one of the last additions to the cast. He will be playing the role of Harold Attinger, a counter-intelligence agent, who is the main antagonist in the film. Earlier this month, Grammer spoke about his "malevolent" character to Empire magazine.

New Images of the Bumblebee and Optimus Prime G1 Revealed.

"He's a no-nonsense guy. He's lived his life in the shadows for 30 years in the service of his country, and he likes to be unremarkable yet very efficient." he said.

The Frasier star also spoke about working with director Michael Bay for the very first time.

"I don't know if Michael has seen Frasier," laughed Grammer. "He's been very respectful and funny. He's a terrific guy and quite a filmmaker. He just said to me the other day, 'You're Kelsey Grammer - you can do whatever you want to do.' So I guess he at least has some acquaintance with my work."

One of his accomplices, an agent working under him, is Savoy, who is being played Titus Welliver

Jack Reynor is the male lead of the film and will be playing a race car driver. His co-star Nicola Peltz will play Reynor's girlfriend in the film, and Mark Wahlberg will portray Flynn Vincent, Peltz's dad.  The cast also includes Stanley Tucci, Sophia Myles, T.J. Miller, Bingbing Li, Victoria Summer and Geng Han.

Transformers: Age of Extinction comes out June 27, 2014. 

Here's the behind-the-scenes clip featuring Grammer:

Tags: Transformers 4