Michael baai, bay casts 'Britain’s loneliest dog' in Transformers: The Last Knight 

Anthony Hopkins joins 'Transformers: The Last Knight'

Michael Bay teases Megatron's return in 'Transformers: The Last Knight'

Michael Bay is hard at work rounding out the cast for next year’s

So far, Mark Wahlberg and Josh Duhamel are both confirmed to return, and an actual knight — Sir Anthony Hopkins — has also signed on to join

isn’t made up of just humans and alien robots. There’s also a canine cast member.

dubbed a dog named Freya “Britain’s loneliest dog,” writing that the 6-year-old Staffordshire bull terrier cross has been passed over for adoption by more than 18,000 shelter visitors over six years. Freya, who suffers from epilepsy, has been in shelters for most of her life, and when Bay read Freya’s story, he decided he had found his newest star.

“Found this in the news last week in the UK. We gave the Loneliest Dog, a role in

,” Bay wrote on Twitter. “Freya, has epilepsy and has been in a shelter her whole 6 year life. We are also going to find her a home. … If not she will come to my house. Welcome to the cast Freya!”

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Found this in the news last week in the UK. We gave the Loneliest Dog, a role in Transformers. (1/3) pic.twitter.com/u4NIBRmvPH

Freya, has epilepsy and has been in a shelter her whole 6 year life.We are also going to find her a home. (2/3) pic.twitter.com/JVLXnvRTU8

If not she will come to my house. Welcome to the cast Freya! (3/3) #Transformers pic.twitter.com/x9YJoP9eq4

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