A merchant was an individual that sold items made by others for profit.
Luigi Ferrigo was a Genoese merchant during the Crusades. Ben Daheer was a clothing merchant in Jaffa about the same time. (TV: The Crusade)
Nola was an Atlantean merchant and a friend of Ara. She helped Ara hide Polly Wright from Professor Zaroff's guards. (TV: The Underwater Menace)
Edmund Carteret was a wine merchant and a frequent patron of the Diabola Club at the beginning of the 18th century. (AUDIO: Phantasmagoria)
George Ratcliffe was a London builder's merchant and head of a clandestine fascist group known as the Association. (TV: Remembrance of the Daleks)