The "Transformers" franchise is going gold.

Oscar winner Anthony Hopkins is joining the cast of "Transformers: The Last Knight." The movie's official Twitter made the announcement:

Hopkins isn't the first Oscar winner to star in the franchise (Jon Voight was in 2007's "Transformers"). And it's unclear if he'll play a human character or voice a robot. A previous tweet about a new Cybertron addition could refer to him:

Fans have already been speculating that the tweet could mean the inclusion of Goldbug in the next movie.

Hopkins has been busy recently, filming HBO's big thriller "Westworld" and reprising his role as Odin in "Thor: Ragnarok." "Transformers: The Last Knight" is due to hit theaters June 23, 2017.

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