Kurosaki Isshin

Isshin Kurosaki (黒崎 一心, Kurosaki Isshin) is the father of Ichigo, Karin and Yuzu and head of the Kurosaki family. He runs their private clinic, the Kurosaki Clinic. A skilled doctor, Isshin can perform almost any medical procedure except major surgery. Isshin is a tall man with black hair and brown eyes. He has thin facial hair around his mouth and on his cheeks. As a doctor, Isshin is usually seen wearing a white lab coat over a shirt and trousers. As a Shinigami, he wears the standard Shinigami shihakusho with a somewhat ragged white cloth, similar to a captain's haori, worn like a sash and fastened over his left shoulder. There is no Division insignia visible on it. Isshin often acts like a silly, fight-loving father who is "extremely over-energetic" and takes a keen interest in what his children are doing. He shows this interest either offensively or with an all-too-happy tone, which elicits comical reactions from his kids, usually in the form of a kick. Because his kids choose to keep to themselves, he often doesn't know what they are doing. His lack of knowledge about his children's lives mainly pertains to Ichigo, but Isshin feels that since he's a boy, Ichigo doesn't need to be watched over as much as his twin daughters. Isshin also seems to enjoy making fun of Ichigo and has a tendency to talk to the large memorial poster of his late wife Masaki (which he has pinned up in their kitchen) whenever he feels particularly emotional. Isshin is a big fan of Don Kanonji's TV show. 

Despite his outrageous guise, Isshin can be serious and grim at times. On the anniversary of Masaki's death, Isshin smokes a single cigarette in front of her grave, since she told him when they were dating that she thought it made him look cool. He reflects that it was the first, and maybe the last, time she ever complimented his appearance. He also told Ichigo that he shouldn't blame himself for his mother's death because she gave her life to protect him. In addition, during his confrontation with the Arrancar Grand Fisher and the subsequent chat with Kisuke Urahara, he remains completely serious (aside from a short argument between him and Kon about his parenting, and another short exchange between him and Urahara after the latter likens him to his son).

He also reveals to Kon that he has been aware of Ichigo's Shinigami activities and Kon's substitutions since Grand Fisher's first attack. He also notes that he has never called Kon "Ichigo" while Kon is in Ichigo's body and that the traveling charm he gave to Ichigo before he went to rescue Rukia was actually for Kon, as it was a protection talisman. This shows the sensitivity and propriety that he possesses in his role as Ichigo's father, which is rarely portrayed in the series.

Around Karin and Yuzu he still remains a goof. His explanation for why Ichigo was gone was that he was "Preparing for mating Season!" to which Karin coolly responded, "That's called puberty, Dad." He often tells very random stories of his life. While Ichigo was gone he calmly had a flashback of his life during puberty. During this flashback he was seen as a chibi version of himself, wearing a school uniform and yelling at the sunset, "I'M A MAN!" 

Little is known about Isshin's history, except that he was once a captain-level Shinigami, though his division and actual rank are currently unknown. At least twenty years ago, he ceased being a Shinigami, losing most of his powers. He married Masaki Kurosaki and they had three children: Ichigo, Karin and Yuzu. Masaki was killed six years ago by the Hollow Grand Fisher. 

[Source : Wikia ]

I've posted this because I'm just finish reading Bleach Chapter 397 with Kurosaki Ichigo in a fight conversation with Aizen. This chapter seems to be more fun, because his Dad came to interrupt the conversation between Ichigo and Aizen. I'm still waiting for the next chapter to read. hopefully will be released next week. Unpredictable Isshin Kurosaki came out. lolz. Same when Kurosaki Ichigo came to fight Aizen on Bleach Chapter 395.