Biera

Biera (ビエラ) is a character from the fourth movie. He was the stoker to the boiler on Gasparde's ship, the Salamander though forced to do so to protect himself and Adelle Bascùd (who calls him "Grandpa").

Past
During Gasparde Pirates' attack to Elena, he saves Adelle Bascùd. Later they are took away with a ship, due to became Gasparde's workers.

Dead End Race
At the start of the movie, he is stricken sick which prompts Anaguma to leave the Salamander to try to help him. He come across Shuraiya Bascùd later on in the film. When Shuraiya tells him his past story, Biera realizes that Shuraiya and Adelle are connected. As Monkey D. Luffy fights Gasparde, he blows up the boiler on the ship, causing it to sink and was thought dead.

However, Biera manages to survive (by putting lifesavers all over his body), as well as rescue Luffy and Shuraiya after Gasparde defeated. He then informs Shuraiya that he rescued a little girl from a river eight years ago who could only remember her name: Adelle Bascùd, Shuraiya's sister whom Shuraiya thought was killed when Gasparde's crew destroyed their town. Biera convinces Shuraiya to accept her, despite his brutal life as a bounty hunter, and Shuraiya promises to start a new life for them.