The Third Raikage is virtually immune to any attacks.
Kakuzu can endure virtually anything with his earth armor.
Luffy is extremely tough to injure due to his elastic nature.
Zoro's durability is one of the greatest feature.
Lucci is very durable, mainly thanks to Tekkai.
The One Being Sought can take a slash and being burned at the chest and did not even flinch.
Skin Bolic's solidified lightning skin can take tremendous amounts of damage.
Jasdevi can harden his body as he desires.
Skull protecting Enma (Katekyo Hitman Reborn!)
By using Busoshoku: Koka, Luffy can make parts of his body have durability that rivals or surpasses steel.
Due to his heritage as a Quincy with Shinigami/Hollow powers, Ichigo Kurosaki is immensely resilient to damage, and further training greatly increase this, along with his Tensa Zangetsu further boosting it.
Sado is unnaturally resistant to damage.
When Zangetsu fired a second Getsuga Tenshō at Ichigo, his inner Hollow, taking control, emerged from the destroyed wall with no visible damage.
In addition to his resilience, Yamamoto has shown remarkable durability.
Starrk has proven himself to be highly resistant to both pain and injury.
Suì-Fēng is highly durable, able to withstand being kicked into buildings with enough force to go through walls and bring whole sections down on top of her while sustaining no apparent injuries.
Renji is a very durable fighter, as is his Bankai, Hihio Zabimaru.
With Blut Vein, Ichigo can take a blade to the throat without suffering anymore than a minor nick.
Nnoitra Gilga (Bleach) using Hierro to pressurize his spiritual energy onto his skin, turning it iron hard.
When Love was brutally attacked by a Hollowfied Kensei, with a spiritually charged attack at point blank range, Love sustained only minor injuries and kept on fighting with no signs of faltering.
Daz Bones is tough to injure due to the Dice-Dice Fruit making his body hard as steel.
Diamond Jozu is tough as his moniker suggests, withstanding even the strongest slash in the world without trouble.
Matsuru can withstand more than two god-like powerful attacks of Thor and Hercules without losing consciousness