In flashbacks, unlike comics, Slade Wilson seems less cold and distant, but retains his anti-hero appearance. Slade is a man of good manners, who poses as a tough guy, but underneath he is a caring person, as shown when he rescues Oliver, even after stating that he would leave the island if Oliver didn't go back in time.
Slade does not get along with traitors, as he is shown killing Bill Wintergreen, his longtime friend and partner, until he cheated on him to save his own life. Slade only trusts and cares about people who have proven their worth. These days, Slade seems to be cooler and worse, more like his comic counterpart. He currently hates his friend Oliver, for the fate that Oliver "chose" to kill Shado.