Now we're getting in with the Decepticons.
Megatron: Clancy Brown- Clancy has that voice that just exudes awesome, he's like Keith David that way, and he's also voiced characters that were fierce warriors like the Kurgan from Highlander and cunning villains like Lex Luthor from the Bruce Timm DC animated universe, which to me makes him a great pick to voice the leader of the Decepticons
Starscream: Mark Hamill- Fun fact, Mark was originally picked to voice Starscream in Transformers Prime, but for some reasons I do not know, they went for Steve Blum, who did a great job, but wouldn't be awesome to have Mark Hamill lend his voice to the underhanded number two of Megatron?
Soundwave: Tom Kane- Must I say it? Tom did an amazing job voicing Ultron in Avengers Earth's Mightiest Heroes, and I'd like to see him bring that kind of performance to Soundwave.
Shockwave: Ron Perlman- Aside from Ron being my favorite actor and voicing one of my favorite Decepticons, he just has that voice that fits Shockwave, a calm, yet sinister tone to it, like what he did with Slade in the good Teen Titans cartoon.
Lugnut: Robin Atkin Downes- It's hard in finding voice actors for different characters so I was lazy and picked a guy who voiced another big, strong, evil guy
Nightbird: Kari Wahlgren- same reason as Lugnut, I needed someone who could have a very sinister yet sensual tone to her voice
Predaking: Steve Blum- Yeah, I wanted Predaking to sound like a badass rouge who could turn against the Decepticons, and giving that Steve Blum is everywhere now or days and he's voiced characters like that, why not?
Dinobot(to be renamed): Steve Downes- I wanted someone who could sound like a soldier like Dinobot, and have a sense of honor and heroism to him, and kind of keep to how Dinobot was in Beast Wars but still do something new with him
Blackarachnia: Vanessa Marshall- I wanted someone who can sound evil, sexy, and sound like she can take charge and since I'm already using voice actors form Avengers EMH, might as well go full circle
Lockdown: Brad Garett- Wanted something new with Lockdown, and I was thinking he'd be somewhat of the comic relief to the Decepticons, but instead of being a victim of slapstick or getting into hijinks, I was thinking Lockdown could be something like Hellboy mixed with Lobo, hence the actor pick