Leonard Nimoy, who you may remember from a tv show called Star Trek, along with the six Star Trek feature films where he played Mr. Spock, or possibly you know him from director J.J. Abrams most recent foray into the land of Roddenberry, also called Star Trek, where Mr. Nimoy portrayed Spock Prime. If your memory is a bit hazy on those two (or one?) role(s), you may have seen him playing the founder Massive Dynamic, William Bell on the Fox television series, Fringe.

One role that you may (or may not) remember him from, is when he lent his melodious, elder statesman-like voice to Galvatron in the 1986 animated film, The Transformers: The Movie. Now, EW reports that Mr. Nimoy is heading back to the robots in disguise to portray the voice of Sentinel Prime, Optimus Prime’s predecessor in Transformers: Dark of the Moon.

Director Michael Bay had wanted to get Leonard Nimoy in Transformers: Revenge of the Fallen, but was afraid that he couldn’t pay the legendary actor enough for the voice work.

Bay said,

“I was too scared to ask him. Plus, he’s married to Susan Bay, who’s a cousin of mine. So I had to be careful. I’ve met him at family functions. But he told me, ‘I would be honored. I’m glad to be back!'”

Teaser Trailer: Transformers: Dark of the Moon

Transformers: Dark of the Moon hits theaters on July 1st, 2011 and stars Shia LaBeouf, Josh Duhamel, Tyrese Gibson, Rosie Huntington-Whiteley, Frances McDormand, John Malkovich, Kevin Dunn, Julie White, Ken Jeong, Patrick Dempsey, Alan Tudyk and Leonard Nimoy.