Kurosaki Isshin (Bleach)

From Animepedia

Kurosaki Isshin is a character in the anime and manga series Bleach. He is the father of Kurosaki Ichigo, and a former Captain of Soul Society's 13th Division.

Isshin Kurosaki (黒崎 一心, Kurosaki Isshin?) is the father of the Kurosaki family. He is initially portrayed as a silly, fight-loving father who takes a keen interest in what his children are doing. He shows them affection either offensively or with an all-too-happy tone, which elicits comical reactions from his kids, usually in the form of a kick. Later in the series he reveals himself as a former Soul Reaper, regaining his powers after twenty years so that he can avenge his wife's death by killing Grand Fisher. While in the form of a Soul Reaper, Isshin is generally more serious than usual, only breaking character to defend his eccentric parenting methods. It is unclear what he did while he was a Soul Reaper or why he left, it only being implied that he was captain-level by the piece of captain's robe worn over his shoulder. He seems to be aware of the goings on in the spiritual community through Kisuke Urahara, knowing of Sōsuke Aizen's actions, knowing when Kon is inhabiting Ichigo's body, and having known for some time that Ichigo has become a Soul Reaper.