There was a time (a long time ago) when I thought of renaming myself for artistic and literary purposes “Claire Obscure.”
That idea was either supplanted or supplemented (I can’t exactly remember which; it was a long time ago) by another nom-de-plume, “Dottore Chiaroscuro.” I remember exactly where I was when that idea came to me. I was walking past a mysterious doorway in Rome during my only visit there.
But “Carlos Danger”? Never ever.