Help me with a potential theme-- Clix who are energy beings.

So far, I can think of:

Wildfire
Nemesis
Stardust (& Lambda Zero)
Captain Atom (sorta)
later versions of Alan Scott

Others?

Living Laser
Zzzax

zzax is another

Living Laser, you mean?

I fixed it. Corrected the spelling of Zzzax, too.

Wonder Man, Atlas, Jolt

x-ray
Dr. Manhattan

Can't believe I didn't think of Wonder Man.

Atlas, really?

Dr Manhattan is pretty clearly *not* enegry, as shown when he gets disintegrated the second time. He just knows how to put himself back together.

the klaw (sound energy?)
living laser
I think Korvac is half robot half energy being
Monarch
shadow demon?

X-Ray and maybe Wonderman

Sinister Photon and Pulsar

The Ray from Origin

livewire as well

Red and Blue Superman from CD.

Good lists, everyone.