Lewis Snart

Lewis Snart was the abusive father of Leonard Snart, and Lisa Snart. He was also a corrupt former police officer of the Central City Police Department.

Raising Leonard and Lisa
Lewis was a corrupt police officer who took his anger out on his children until he was sent to prison; for larceny, armed robbery, aggravated assault, and assault with a deadly weapon.

Heist with Leonard Snart
Years later, Lewis escaped Iron Heights. He found his son and daughter while the two along with Mick Rory were committing a robbery. Lewis had his son kidnapped and his daughter injected with thermite. Lewis then threatened his son to work for him or he'd kill Lisa. When the Flash came to "rescue" Leonard, Lewis was shocked when he saw his son cover the Flash in ice. Lewis told his son he didn't think he had it in him and the two left. While planning on a heist, Lewis killed David Rutenberg who told his son to shut up. Without a tech guy, Barry infiltrated the team, volunteering to help as "Sam". Lewis was doubtful at first due to his youthful appearance but Leonard vouched for him. When they arrive for their next heist, Lewis, Leonard, and "Sam" pose as janitors. When their ID badges were failing, Lewis prepared to pull a gun, that "Sam" figured another way without the guards being killed. When they arrive on the twenty-seventh floor, they spotted two security guards. Leonard and Lewis argued as Lewis was wrong about the timing. After "Sam" subdued them behind their backs, Lewis had "Sam" breach the security code. After "Sam" got them in, Lewis shot "Sam". When they arrived at the vault, Leonard froze the lasers and Lewis went to pick the lock. Lewis was told they had 125 seconds before the security system defrosts. After they obtained the diamonds, the sirens went off and as they escaped, they were intervened by the Flash. Lewis told his son to kill the Flash while he kills Lisa. As soon as Cisco removed the thermites from Lisa, the Flash broke the news to Lewis. As Lewis turned around to his son, the latter fired his cold gun at him. Lewis asked why he did it as he always thought he hated the Flash but was told he was hated more.

Personality
Lewis Snart was extremely ruthless, arrogant, selfish, immoral, unreasonable, and unstable. These combined traits made him a very dangerous man. He had little to no regard for innocent lives, repeatedly showing he was willing to kill innocent guards without remorse. This extended to his own men as he killed an associate for disrespecting his son (only he was allowed to do it) and once his subordinates were no longer useful to him he kills them without hesitation as demonstrated on Barry Allen posing as a security expert. Although he was intelligent his intellect was not at the same level of his son's. This combined with his arrogance made him a sloppy criminal. He regularly disregarded his son's advise about timing and contingencies despite Leonard's experience with thievery.

Lewis showed no caring for his own children. When they were children he regularly abused both Lisa and Leonard physically, forcing Leonard to raise his sister on his own. This cruelty continued into his old age as he blackmailed his own son into assisting him on his final heist by implanting a bomb in his own daughter's neck. This lack of compassion for his own children proved to be his downfall. Once Lisa was safe form his plot he was killed without hesitation at the hands of his own son Leonard Snart.