Pierre Un Deux Trois is a clothing designer from France. He only appeared in Newt for a Day.
When he arrived at Camelhot for a fashion ball, Allfire and Flame didn't care for his designs, but Griddle and Blaze loved them.
He fell in love with the Hag of Giss, and they left to make a newt design (which Flicker suggested to explain Sir Loungelot's transformation into a newt) the rage in Paris, and were last seen kissing in a carriage on their way to Paris.