D'Ken
- D.O.A.
- Doc Samson
- Doctor Bong
- Doctor Decibel
- Doctor Demonicus
- Doctor Doom (aka Victor von Doom)
- Doctor Dorcas
- Doctor Druid
- Doctor Faustus (aka Johann Fennhoff)
- Doctor Glitternight
- Doctor Minerva
- Doctor Nemesis
- Doctor Octopus
- Doctor Sax
- Doctor Spectrum
- Doctor Strange
- Doctor Sun
- Doctor Tambura
- Doctor Volkh
- Kenneth Dolan
- Stacy Dolan
- Domina
Read more about this topic: List Of Marvel Comics Characters: D