20 Things You Didn't Know About Transformers
12. The Voice Actor For Bumblebee Didn't Know His Voice Would Be Used
If you thought the voice of Bumblebee at the end of the film sounded a little old, then you're not alone. Mark Ryan, the man who provided the voice, agrees with you.
Ryan was often used on set to provide the voices of the various robots so the actors have something to react against. This is a role that he has had for the various sequels that followed the 2007 film (in addition to portraying Jetfire and Lockdown).
What Ryan did not know, was that his voice for Bumblebee would be used in the final film. When he eventually got the news, he admitted that if he had known beforehand he would have given the Autobot a younger voice.