Noel Vermillion (ノエル＝ヴァーミリオン Noeru Vāmirion), also known as the Calamity Trigger, is a former second lieutenant of the World Void Information Control Organization, who was a soldier in the 4th Magic Division, and a member of the Imperial Guards. She is a playable character in the BlazBlue series.

Noel is a young girl with long back length blond hair (although she covers her hair in her blue balmoral cap, making it seem like she has short hair), and green eyes. She wears a Control Organization blue cloak with hood, long black socks, and blue military boots. When she is in battle, she wears a jolting sapphire Control Organization uniform dress with a white collar and a short red tie, with two separate long sleeves that have two heavy metal bands and a long red strap, white gloves, and carries two giant pistols linked together, the Bolverk. As a replica of a young Saya, Noel shares her physical appearance, save that her hair is of a darker color.