L

• Lady Dorma

• Lady Sif

• Larry Trask

• Lash

• Leader

• Leech

• Legion

• Lex Luthor

• Life Foundation Symbiotes

• Lilandra Neramani 

• Lilith (Daughter of Dracula)

• Lilith (Mother of All Demons)

• Living Brain

• Living Tribunal

• Liz Allan

• Lizard

• Loki

• Longshot

• Lord Shingen

• Lucas Cross

• Lucifer