Starring in the Comic:

Silent "The Player"
Leo Metal Sonic
Clone Sonic "Tune-Up!"

Fun Facts:

~ Leo Metal Sonic's "Whim Mode" look is a reference to transformation of Neo Metal Sonic in IDW Sonic the Hedgehog - Issue 10

~ Leo Metal Sonic is a Hedgehog / Lion Hybrid Robot, aka. "The Shapeshifter".
That's why he also has a tail. He specializes in Circus Performance.
He can change appearance into his 2nd Form: Liquid Metal Lionhog.

~ *A Big "Kiss"* said by Leo Metal Sonic is obviously a reference to Michael saying "Hey guys, I think the little man said he wants to give Fredbear a big kiss!" in FNaF4.
Here it is clear that we are talking about a Bite.
However, in Silent's situation, the weak spot that causes her of being paralyzed is biting into her neck.
Dr. Golden "Preparation" gave to his Forces an instruction to not to bite on Silent's head.
This is because he doesn't want for Silent's memory to be damaged and doesn't want to remind him of his past trauma.

~ Silent "The Player/Avatar" can summon a Night Guards from previous pizzerias, now as Security Guard Comrades by saying: "Concord Control".
She's using Concord Gem Bracelets to do so.
I think you know to what reference is that one... no?
Then "Chaos Control" says anything? Yeah, it's just an opposite and different power!

~ Clone Sonic "Tune-Up!" doesn't want to capture Silent "The Player/Avatar" for the Doctor even though, he's on "Evil Empire" side. The Clone wants to Perform for Silent... Even earnestly and infinitely.
This is the "Game Over" for Silent, imprisoned by Clone Sonic "Tune-Up!".
Sonic "Tune-Up!" and Silent "The Player" have their own 4th Ending in the Main Story Mode, called: "Joke Trick!"