Detective Fantôme (Earth-616)

Detective Fantôme must wander the Earth as an avenging spirit, aiding others until he can solve the mystery of his own murder and achieve entrance into Heaven. At night he prowls the Louvre Museum, in search of secrets and mysteries.

He was also part of Les Heroes de Paris.^[1]

At some point, Les Héros de Paris vanished, leaving Paris low on super heroes and vulnerable.^[2]

Intangibility:

As a ghost, he never needs to eat or sleep.

• In Fantastic Four #541, Adamantine describes la Lumiére Bleue as prowling the Louvre Museum like a phantom in the night during the team introductions, but later Ben Grimm and Detective Fantôme have a brief discussion of why the undead detective prowls the Louvre. It is possible that both introduction were meant for the Detective Fantôme.
• Given Dective Fantôme and Capitaine Fantome share similarities both in their names, appearances and some colleagues in their respective teams, the latter was obviously inspîred by the former.