Selected 135th overall by the New Jersey Devils in the 2000 NHL Entry Draft, Danton was a left winger for the St. Louis Blues, who traded a 3rd round draft pick to New Jersey to obtain him. He played 68 games for the Blues in the 2003–04 season. While with the Devils organization, he changed his last name from Jefferson to Danton after becoming estranged from his family. He admitted he adopted the surname "Danton" from the name of a 13-year-old boy at David Frost's hockey camp, because the name sounded "cool". He also feuded with Devils general manager Lou Lamoriello and was suspended by the team, prompting his eventual trade to St. Louis.