In addition to changing its wearer's voice, the helmet also features sound effects and has five different voice clips from the movie. Unforgettable lines such as "I am Optimus Prime" can be played at the touch of a button, making this the ideal role-playing toy. About Transformers/5(80). The Transformers (TV Series –) cast and crew credits, including actors, actresses, directors, writers and more. Transformers is a series of American science fiction action films based on the Transformers franchise which began in the s. Michael Bay has directed the first five films: Transformers (), Revenge of the Fallen (), Dark of the Moon (), Age of Extinction (), and The Last Knight (). A spin-off film, Bumblebee, directed by Travis Knight and produced by Bay, was released on.