Hiroshi Sakura is the father of Maruko and Sakiko Sakura, husband to Sumire Sakura, and son of Tomozo and Kotake Sakura. He sports short black hair with front locks swept right and a distinct left-side strand, complemented by visible cheeklines. His standard outfit features a long-sleeved orange shirt with brown trousers and shoes, shifting to short sleeves in summer.

Hiroshi embodies a relaxed, free-spirited demeanor, often immersed in home leisure like newspaper reading or television viewing. He playfully mocks others during disagreements yet laughs heartily at jokes, especially Maruko’s anecdotes. His parenting balances tolerance with occasional opposition to misbehavior, a trait mirrored in Maruko. Social situations unnerve him profoundly, triggering visible distress during events like wedding speeches.

His pursuits include savoring sake socially and at home, alongside avid fishing—studying techniques and maintaining gear. He habitually farts near family in living spaces or beds for warmth. Though an early-series smoker, he quit after confrontation, with no later depictions showing the habit.

Domestically, Hiroshi seldom aids Sumire in chores, preferring kotatsu relaxation. He shares humor and time with Maruko, though less frequently than her grandfather interactions; his bond with Sakiko receives less focus. Financial and household duties primarily rest with Sumire, minimizing his shopping or task involvement. He met Sumire through a friend, their early relationship strained by his reserve.

Hiroshi favors katsuo sashimi, boiled fish, ramen, and milk-topped kakigōri, while disliking gratin and sweets. His preferred singers are Hibari Misora and Mina Aoe.

In the film *Eiga Chibi Maruko-chan: Italia kara Kita Shōnen*, Hiroshi appears with the Sakura family, maintaining consistent series characterization.