Other Names: Lucifer Morningstar; Samael; The Lightbringer; The Devil; Atse'Hashke
First Appearance: (in a dream) Superman's Pal Jimmy Olsen #65 (Dec. 1962); (real) DC Special Series #8; (current) Sandman (vol. 2) #4 (Apr. 1989)
Number of appearances: 128
Foe of: The Sandman
Note: lord of the underworld
Note that for simplicity's sake, Lucifer has been classified as a devil. But like many of his ilk, he is also a "fallen angel." As such, Lucifer could certainly be grouped with angels as well. This is a particularly important part of Lucifer's character, more so than with many fallen angels who are now devils.
Suggested links for further research about this character: