The Pretender is a person who pretends to be Prince Giles instead of Finn under command of Queen Sia. The book Sapphique revolves mainly around him and his quarrels with Finn.

Caspar later stated that they planned to have the Pretender take the place of Prince Giles, and then kill Finn for being an "imposter". Afterwards, they would also kill the Pretender to ensure that Caspar still became the heir nevertheless. The Pretender did not appear to be aware of this plan and stated he only agreed because Sia promised him the kingdom and enough to keep his six brothers in luxury.

The Pretender is a great actor and sometimes even fooled Finn into thinking he might be the real Giles.