Well, Billy’s kind of easily recognizable, what with all of his shirts being identical.
He was poor! He only owned the one shirt.
Matt Murdock.
Wondy’s eyes glow constantly unless he wills them not too, which he doesn’t do much as it gives him a headache.
When is Captain Marvel ever out of costume? When Billy, Mary, or Freddie says the magic word, the clothes come along for the ride. (Though I have no doubt they’ll eventually find a way to have Mary change and wind up naked in the process).
Or it might be Cyclops with hair dye.
and a white cane?
He didn’t always have the cane.
I’m not sure, I thought Skartaris was in another DIMENSION (using the silly comic book definition of that word) and that the portal into it just happened to be a great big hole in teh ground (and said portal wasn’t always open). Otherwise it’s difficult to explain Clark, Hal, or Cave Carson not knowing about it. 
Does Matt use the cane now that his secret ID’s toast?
That’s not true! Sometimes he wears a red shirt with a yellow collar, and sometimes he wears a red sweater over a yellow shirt! Totally different!
This thread is the reason that George Perez is my favorite comics artist. He could always give each character a distinctive nose, a distinctive chin, and distinctive cheekbones. You could instantly tell Dick Grayson from Wally West, even in a black-and-white picture.
Speaking of Teen Titans, Jericho’s blonde afro and sideburns were pretty unusual in the 1980s comic world.
Did Mike Grell draw Warlord before or after he drew Green Arrow?
Warlord came before Grell’s Arrow, though the look the two of them shared was given to Ollie by Neil Adams in 1969, so for purposes of this thread…
Don’t know. I’m very much out of the loop of the last ten years of comic continuity.
Back in the '70s, anyway, his cane was red, because it transformed into his billy club.
This is the interpretation that the Books of Magic used.
And the one that makes the most “sense.” Does anyone recall whether Warlord was involved in Crisis on Infinite Earths?
He wasn’t, unless it was a very brief, very unmemorable, cameo, or in a tie-in book, other than the Legion or Amethyst issues. (Guess which series I’ve read most recently of the ones that had Crisis tie-ins.)
You can always tell Commissioner Gordon. He’s got the thick-rimmed nerd-style glasses, gray-white hair, and the booshy cop mustache.
I’m guessing you aren’t aware that those bits were a running gag. The Green Arrow writer/artist for that story was Mike Grell, who CREATED Warlord many years before and admitted he modeled Travis on Neal Adams’ version of Oliver.
You could probably say Oracle, she being pretty much the only major DC character in a wheelchair (plus, she’s a redhead). I’d say Tony Stark was pretty recognisable, and early Peter Parker certainly was.
The invisible man. Out of costume. That dude is everywhere 