Mr. Sunshine is The General's right hand man and the Sons of Samedi's second in command. He is incredibly devoted to The General, who calls him "friend", but he and Veteran Child hate each other. He is a violent man when prompted, slashing an innocent bystander inside Scratch That to clear the place out and shooting an addict who wants to buy the drugs from the 3rd Street Saints, sparing Veteran Child's life only on The General's order. He finds the burning of Shivington "beautiful." He often carries a machete as his weapon of choice and a sceptre made from a wooden shaft topped with a skull on top and ending in a spike.
He possesses some kind of Voodoo power while holding a voodoo doll, as is able to become immortal and send The Protagonist flying without even touching them while manipulating the doll.
Sunshine helps intimidate Veteran Child into admitting that he had given information to Shaundi. After the loss of Shivington to the Saints, Mr. Sunshine takes a more direct role and arranges for The Protagonist to be abducted. Unfortunately for him, The Protagonist escapes but not before, concussed and stoned, refusing to be intimidated by Sunshine.
After further failures, The General cuts his left ear off as punishment. Mr. Sunshine accepts this and assures his boss that he"only need[s] one ear to hear the whispers of the Loa." He enlists multiple addicts to attack the Drug Factory, swearing they can keep all the drugs for themselves. The Protagonist goes gunning for him in revenge, attacking him at his hideout in the meat packing plant. In a display of supernatural power, Sunshine survives and continues to fight after being shot multiple times in the chest. Annoyed, The Protagonist empties an entire magazine into him and finally beheads him with his own machete, before chucking his decapitated head onto a conveyor belt.
Afterwards, people around Stilwater (including Shaundi) wonder if he is really dead or might come back.
Mr. Sunshine has a high pain tolerance, willingly allowing his ear to be cut off without making any noise indicating pain, although he clenches his fist, showing he does feel it and that he bleeds.
Mr. Sunshine acts a lot like the fictional drug lord King Willie from the movie Predator 2 and even Sunshine's death bears a resemblance.
He may also be a reference to Baron Samedi, the James Bond villain, who also has occult abilities and seems immortal.
Mr. Sunshine shares similarities with Jyunichi. Both are young men who are second-in-command and chief enforcers of their gangs and specialize in bladed weapons. Both also are very close to their leaders (The General and Kazuo Akuji, respectively) and meet their ends by blades as well as someone snitching on them.