A minister of the planet Kostolain who arranges to marry Lwaxana Troi aboard the Enterprise-D in 2368 without ever having met her, and whose devotion to protocol dooms the match.
Minister Campio appears in the fifth-season episode Cost of Living. He and Lwaxana Troi have been paired by a compatibility profile, and he arrives for the wedding with his protocol master, Erko, who objects to almost everything about the bride's informality.
Campio is courteous but stiff, a man who lets Erko decide what is proper. Lwaxana, lonely and afraid of growing old alone, tries for a while to fit herself to his expectations, even agreeing to give up the traditional Betazoid ceremony.
Encouraged by her time with young Alexander, she changes her mind and arrives at the ceremony in the Betazoid fashion, wearing nothing at all. Campio and Erko leave at once. He was played by Tony Jay.