Billy Wintergreen


 * For his partner who uses the same codename, see Slade Wilson.

"Slade! Come back to die?"

- Bill Wintergreen

Bill "Billy" Wintergreen, known under the codename "Deathstroke", is an ally of Edward Fyers and was former ally of Slade Wilson, his original partner in the Australian Secret Intelligence Service.

Biography
Some time before 2007, Bill and his partner, Slade, came to Lian Yu to rescue Yao Fei. Their plane was shot down, and Bill eventually allied himself with Edward Fyers, leaving Slade to escape by himself.

When Oliver was stranded on Lian Yu, he was captured by Edward Fyers' men who were looking for Yao Fei, their reasons unspecified. When Oliver refused to give up Fei's location, he was tortured by Deathstroke. Oliver is later rescued by Yao Fei, who engages Deathstroke in battle and temporarily subdues him; escaping with Oliver. Deathstroke later tracked down Fei, besting him in a fight and taking him to a camp led by Fyers.

When Oliver returned to the camp to rescue Yao Fei, Fei knocked him out as Edward Fyers and Deathstroke entered his tent. Deathstroke was led to execute Oliver. However, Slade caused an explosion, distracting everyone. As Oliver ran to his safety, Slade and Bill fought, leading to Slade stabbing Billy in his right eye.

Abilities

 * Expert hand-to-hand combatant: Deathstroke is an expert in close-ranged hand to hand combat, as seen in Oliver Queen's flashback when he fought Yao Fei.
 * Master martial artist: Deathstroke is a master martial artist and is able to hold his own against Yao Fei who appears to be his equal.
 * Master swordsman: Like his comic book counterpart, this version of Deathstroke uses a katana-like sword as his primary weapon, and is extremely proficient with it
 * Peak human physical condition: Deathstroke is in top physical condition and  demonstrated incredible feats of strength, endurance, stamina, speed, and agility when he fought Yao Fei. Deathstroke also demonstated coordination, dexterity, and reflexes that appeared to border on superhuman.

Trivia

 * Bill's Deathstroke mask is seen mounted on a wooden stake in "Pilot" as Chinese fishermen investigate Oliver's distress signal. It has a hole through his right eye, foreshadowing his past battle with Slade.
 * Deathstroke gave Oliver his second scar by cutting the lower left side of his abdomen with a knife while torturing/interrogating him.