Travers is a Death Eater.
Travers fought in the Battle of Hogwarts. He killed Orla Quirke, with a blood-boiling hex. In retaliation Natalie MacDonald tried to Crucio him but he deflected it, laughing, then she hit him with a Relashio in the thigh (though she was aiming for his groin). This made him angry and he killed her with a Reducto to the stomach.
Ernie Macmillan then disarmed and unmasked him, and then he fell to his knees and begged for mercy. Ernie hestitated but then Seamus came up, put his wand in Travers' mouth, and said "You can have the mercy you gave that little girl, you sick fuck. Reducto."