Richard Speight Jr. is an American actor and director who is known for a variety of roles including Jericho, The Agency, both CBS TV series, and the HBO miniseries Band of Brothers. In the WB/CW series Supernatural, he played a recurring role, the archangel Gabriel, originally thought to be a "Trickster" or Loki, as well as Loki whose identity Gabriel took on. More recently, he played Dugan in the 2021 film Old Henry. (Via Wikipedia)