John Goodman, Ken Watanabe Join 'Transformers 4' Voice Cast

John Goodman and Ken Watanabe are late additions to the Transformers: Age of Extinction voice cast.

Extinction is the fourth Transformers movie from Paramount and Michael Bay, and has Mark Wahlberg leading the live-action cast.

The movie opens June 27 but many times voicework is done near the end of the post-production process for CGI-heavy tentpoles.

Goodman will play the Autobot Hound while Watanabe will play Drift. Peter Cullen reprises his role as the voice of Optimus Prime, and Frank Welker takes on another new character, Galvatron.

The voice cast also includes John DiMaggio, Mark Ryan, Robert Foxworth and Reno Wilson. DiMaggio and Ryan are playing new characters Crosshairs and Lockdown, respectively, while Foxworth reprises the role of Ratchet and Wilson returns as Brains.