Labrador's Father

Labrador's Father is a minor, unseen character who nevertheless plays a fairly important role in his son's backstory.

Labrador
Although no direct interaction has been shown between them, Labrador is implied to respect his father. After losing his Ghost powers, he returned to the Krat House and visited his father's grave.

Manga synopsis
When Teito Klein and Roseamanelle Ouka Barsburg visited the Krat House, Labrador's father is revealed to have died in a way similar to Labrador's manner of death. It is also revealed that when Labrador's father was alive, the Krat House was in its "golden era". After his death, Labrador's uncle seized control of the Krat House.

In the final manga chapter, Labrador mentions having paid a visit to his father's grave, revealing that Labrador's father is buried at the Krat House.