Dominique Fishback and Pete Davidson walked the red carpet Monday.
Fishback, who plays Elena Wallace in the new film, wore a sheer black top with a light blue sarong-style skirt. She was joined by executive producer Michael Bay as she posed for photos.
Davidson, who voices the Autobot character Mirage, sported a blue tracksuit with a Transformers icon on the front.
The actor and comedian told Entertainment Tonight that original Transformers star Megan Fox and her fiance, singer and rapper Colson Baker, aka Machine Gun Kelly, were hyped about him joining the franchise.
"When I told Colson and Megan, they laughed, they were like, 'That's sick.' They were really stoked," Davidson said. "It's really exciting, man."Cast members Anthony Ramos, Tobe Nwigwe, Peter Cullen, Peter Dinklage and Michaela Jae Rodriguez also attended the premiere.
Transformers: Rise of the Beasts is the seventh installment in the Transformers film series and a sequel to Bumblebee (2018).
Paramount Pictures shared a trailer for the film in April.
Transformers: Rise of the Beasts opens in theaters Friday.