Overflow: (voiced by Max Mittelman) 

Gax/Tentaclash: (voiced by Yuri Lowenthal) 

Shock Rock: (voiced by David Kaye) 

Slapback: (voiced by Todd Haberkorn) 

Steel Jaw: (voiced by Jason Griffith) 

Beelzebash: (demon DNA, voiced by Troy Baker)

Laserscale: (dragon DNA, voiced by Clancy Brown) 

Flytten: (Exceed DNA, voiced by Colleen OShaughnessey) 

Blight: (Klyntar DNA, voiced by Ben Diskin) 

Mech Shift: (Cybertonian DNA, voiced by David Kaye) 

TenTen: (Sotoraggian DNA, voiced by Dee Bradley Baker)

Slimegirl: (Water Slime DNA from Monster Musume, voiced by Monica Rial) 

Jadefire: (Tamaranean DNA, voiced by Hynden Walch) 

Tali: (Quarian DNA, voiced by Ash Sroka)

Mananite: (Anodite DNA, voiced by Laura Bailey) 

Behemoth: (Alien OC, voiced by Travis Willingham)  

Omni-Doomer: (Sphere Doomer DNA from Kirby, voiced by Eric Bauza) 

Broodwing: (Atasian DNA, voiced by Richard McGonagle) 

Thundergod: (Asgardian DNA, voiced by Patrick Seitz) 

Solar Flare: (Kryptonian DNA, voiced by Jack Quaid) 

Bloodsport: (Yautju DNA, voiced by Dee Bradley Baker) 

MonKi/Daikon: (Saiyan DNA, voiced by Alejandro Saab) 

That's all for the locked aliens. How they will be unlock is up to you. Let me know what you guys think at the comments below, peace out and enjoy!