With Shia LaBeouf once leading the Transformers franchise in the main role, many fans wondered what happened to Sam Witwicky in the later movies. Michael Bay was drawn to the original Transformers ...

there are some that seem highly unlikely. Chief among the latter camp is the reappearance of Sam Witwicky, portrayed by Shia LaBeouf in the first three "Transformers" movies from 2007 to 2011.

Both the Shia LeBeouf and Mark Wahlberg Transformers ... adding legitimacy to LaBeouf's excuse for leaving. While Sam Witwicky was a great character, he was worse whenever he had a love interest.