It depends on the powers of the characters, their nationality, personality, etc. The more I know about the characters, the better I can help you.

Do you want me to go over the universes entire lore or just the characters?

Just the characters.

So there are 3 kind of main characters you have

The original

A kind harted person that wanted to be a hero largly by the propaganda show everywhere

He has the power of time and space manipulation that evolves like at first he can see things that will happen in like a few seconds then he can see the entire timeline then he can alter it

He gets driven insane when using his power and knowing what is happening to "villans"

Then you have the "barly human"

A "villain" that was classefied first as a tier 4 (powerless) and he loves sience and technoligie he has the power of super (insane) inteligence this power grows stronger over time from being smart to the martest person alive to like predicting your next move kind of smart he is first angry at the gods for not changing his fate thats why he made 7 godkillers all specialising into difrent aspects (speed, durability, stealth) later on when he know gods are just beings that check if the ppl with their power arn't schrewing anything up

And at last the "i am despretly not trying to make this a mary sue"

A person born in a small town that is next to a god briging point (gods can go in their full physical body's onto earth) specifacly the god of stroms (aka the strongest god) he was born with the power of complete energy manipulation he is kind of the protector of the town the other two are kind of normal average looking humans but this one is 4,30m gives an intimedating aura of after the village got raided by outlaws that hired the help of an hero the goverment labelt him als an villain it gets worse because in that same raid one of the outlaws was able to kill his wife. this woud lead to him getting arrested and going true all the difrent stages of grief he is stronger and has the ability of last stand witch lets him survive no matter what by consantrating the attack on one point his power evolves by going from x10/divided by 10 to in the end xinfinite/x0

The other characters don't have a detailed story as these ones you can chuck some random names out for them and if you have some additions for my carachters il'l be happy for feedback

The original could be named something unique and befitting. Boone Bunker, aka Continuum. Boone is an English name meaning good, and Bunker is old French for good heart. Continuum is obviously based on the space-time continuum.

Alternate names:

Timeline

The Precog

The barely human one needs to have a name that matches his intelligence and demeanor. Prometheus Watson, aka Intel. Prometheus is a Greek hero who stole fire from the gods to give to the mortals. Watson is a famous AI built by IBM. Intel, short for intelligence, is also defined as information of value.

Alternate names:

Mindgames

Brilliance

The final one sounds like he's larger than life, and his name should reflect that. That's why I'm thinking of calling him Grant Beaumont, aka Power Plant. Grant means large, and Beaumont means beautiful mountain. Power Plant is a reference to both his powers and his size.

Alternate names:

Energizer

Nuke

For the "villain" guy, I would say the name Alec (it just sounds like a brainy villain name, idk), or Victor (because of the love for science, and revenge, Frankenstein). For the third character, maybe Ethan or Casey (they both have some meaning around survivor, brave, etc.). The last name for the first character could be fittingly obvious, like Oakheart, Everheart, even Hartford or Hartfield (and you can play with spelling).

You're story sounds really intriguing!

And here are some randoms:

Thomas

Blake

Declan

Callum

Cameron

Caden

(I have a lot of C names)

Carter

Jaden/Jayden/Jaiden (+ any other spelling)

Jake

John

Owen

Pamela

Clementine

Caspian (kinda sounds like a captain name for whatever reason)

Sadie

Parker

Quentin

Good luck!