Which one would be better choice to voice Optimus Prime besides Peter Cullen?  
I'd want to hear Josh Brolin voice Megatron & Michael Ironside voice Optimus Prime or Ultra Magnus, there voice acting is amazing  

Spoiler

 

It's hard to imagine Peter not voicing Optimus, and realistically, they can digitize his voice, have a trained voice actor run the lines and no one would know the difference.

As for Megatron, the guy who did the voice for Gral Grievous, if you can imagine that voice only tweaked just a bit is perfect for a Megatron voice.

 

The same actor who voiced General Grevious? As Megatron? that would be awesome!  

 

Ron Perlman or GTFO

 

My brother can do a killer impression lol.  

 

hahaha  

 

I miss Garry Chalk.  

 

Josh Brolin would be pretty cool as Grimlock, if you ask me.

 

Josh Brolin is better as Unicron or Galvatron,or even Megatronus,and Michael Ironside fits Ultra Magnus or Alpha Trion better,but for Optimus I would choose Dave Wittenberg (Kakashi Hatake's english dub actor from Naruto Shippuden).

 

Man I would like to hear a Brolin take on Megatron. Sure, may just be for Thanos/Cable memes, but still cool, methinks

 

I don't know-I mean, I guess Michael Ironside could work, but to me, it would turn out to be Optimus Prime+Sam Fisher, LOL!!! I guess that would be the remote closest to ever getting a "Splinter Cell" movie.

 

I don't think Ironside would be a good for Prime at all. He's awesome, but the type of character he plays isn't Optimus Prime.

He was a great gruff Ultra Magnus, though.

 

Michael Ironside as Ultra Magnus is a good choice  

 

When Peter retires, they should retire Optimus too.

 

Hmmm, neither are a fit for Optimus Prime, but I’d be willing to bet Brolin would be a brilliant Ironhide.

 

That's lit  

 

Honestly, I'd like to hear Josh Brolin as Ironhide.

 

added option to vote for Josh Brolin as iron hide  

 

Damn it... I can't change my thread title