PART 1: The Impostor
Onboard the Imperial flagship
Amorphous Rouge

"
..and the Empire. The Empire is always open to be allied with civilizations and organizations that are willing to cooperate for the greater good.
"

"And that is the message in it's entirety. Do you wish to act upon it, my lord?"

"They request an official emmisary from the empire, and while I may not be the foremost immortal ion the galaxy, who better to represent the interests of the empire than I? NAVIGATION!"

"My lord?"
"Set course for Farstab immediately! I have a dinner to attend to."

The Omega shard, the most powerful of the Warhead shards(rivaling the original warhead himself) will be in attendance. Here he is surrounded by advisors, other immortals, and his personal banner. (Does not represent the entire Immortal Empire)
PART 2: The Imperialist
Moskovad, Capitol of the 45th Union

"Sherman. What news do you have for me?"
"An exra-galactic power has entered out galaxy and demand an audience with the various leaders."

"You're a smart man, Sherman, and I doubt you think you're the first to bring me this news. Why are you here?"

"Mr. President, I want to attend as ambassador for the 45th union".

"You will attend General...but not as the ambassador..."

"...for I plan on being there myself."

(President Peachamir Putin will be the representative of the 45th Union, with General William Tow-Face Tecumseh Sherman as his second.)
PART 3: The Leader of the Free Galaxy

"As Biden is uh, indisposed at the moment, I uh...Plan on attending myself"
(B'lack Obama will be the representative of the United Systems Alliance.)