Marvel characters who don't need to breathe

[mugiwara]

Who are the characters who don't need to breathe?
It seems that some characters, like Juggernaut or Colossus, need or don't need to depending on who is writing and what is convenient for the story.

So who has been shown, at least in some comics, to be able to survive without breathing at all.
(let's get the cosmic entities, the Heralds and the robots out of the way)

Blue Marvel
Colossus
Diamondhead
Juggernaut
Mercury

I'm not sure about the gods. I believe Thor can hold his breath for a long time, but he actually need to breathe, right?

[Phoenixx9]

Wonder Man

[Mike_Murdock]

Silver Surfer is another one. I assume all the cosmic entities qualify.

Before I clicked on this, this isn't something that remotely occurred to me, but there's actually quite a lot.

[Cruelrain]

Emma's diamond form

[mugiwara]

Wonder Man

Ah yes, I forgot about him. This was a plot point in Emperator Doom.

Spectrum doesn't need to either when in energy form, but she's now flesh and blood when not using her powers. I wonder if she can stay in energy form as long as she wants.

Rockslide shouldn't have to breathe, but ha was still choked by Based Glob in a story. I call it bad writing.

Characters with adaptative powers like Darwin or Random can probably survive without breathing too.

[DrNewGod]

All of the androids. Vision, Jocasta, Ultron, etc.

Alpha Flight's Roger Bochs when merged with the Box robot.

I'm not positive, but I think the Eternals don't need to breathe. At least, you can't suffocate them.

[Digifiend]

Captain Marvel and Nova both don't cover their mouths and noses when in space.

Anyone using a symbiote or the Phoenix force can also survive in space.

[Astral Disaster]

I'm not sure about the gods. I believe Thor can hold his breath for a long time, but he actually need to breathe, right?

It's been pretty inconsistent in the comics, even with the Asgardians in general. Personally, I'd prefer gods and god-like entities be unaffected by a lack of breathable atmosphere, from a visual standpoint it easily conveys the idea they are beyond simply being humans with super powers.

[Billy Maximoff]

The Maker (Ultimate Reed Richards)
Hulk
Abomination? (He can sleep underwater)

[Panic]

Uncle Ben.

[mugiwara]

Uncle Ben.

Oh no, You didn't.
1401402265-huuummmf.jpg

[Kaitou D. Kid]

Flint Marko / Sandman doesn't need to.

[DrNewGod]

Flint Marko / Sandman doesn't need to.

You know, now that you mention Sandman, you'd think Hydro-Man doesn't need to breathe.

I'd also assume Absorbing Man doesn't either when he's in a non-human form.

Along the same theme, can't Spectrum do without breathing when in energy form?

[Phoenixx9]

What about Quicksand?

Volcana in her Ash form?

[KingNomarch]

Uncle Ben.