Theseus Scamander is a character in Fantastic Beasts and Where to Find Them.
Theseus Scamander is the older brother of Newt and the first-born son of Mr and Mrs Scamander. He was regarded as a war hero after the involvement of the First World War and promoted to Head Auror during the Global Wizarding War.
By 1927, he was engaged to Leta Lestrange. When he learned that Gunnar Grimmson had been hired to hurt Credence Barebone, Theseus was infuriated.
At the French Ministry of Magic Headquarters, Theseus hesitantly questioned Torquil Travers, whom he had been at odds with for a long time. He had ordered the Aurors to break up Grindelwald's rally. However, at Cimetière du Père-Lachaise, he defied Travers by saying that listening to Grindelwald was legal. He also helped put out the Paris fire.