True---------------------ish! Big but coming up. BUT you're forgetting Desperate Dan and that's not a good thing. Check out his work for the navy. By the way, his 1st. appearance was in 1937:-http://britishcomics.wikia.com/wiki/Desperate_Dan
Just having fun with you. But the strip was drawn by D.D. Watkins a bit of a genius.
Also, if you've seen the short article I submitted to Alter Ego (which might never appear, of course), you'll see that there were a number of masked mystery men/costumed heroes and a superhero from British storypapers. In the same way that there were American pulps, we had our versions plus illustrated storypapers for younger readers with heroes such as Flying Justice; Black Whip; Iron Man (not that Johnny-come-lately) and piles more.
Our heroes were concerned, for the most part, with more down to earth problems, in the same way as The Shadow and The Spider were, although The Spider did preside over huge death tolls in his stories.
I suppose I've been successful in getting replies. Even if it was a bit cheeky.