Double the fun or double the trouble? Dual roles are an often used and familiar trope in movies, and K-dramas have also given us plenty of situations where leads have their own lookalike, which adds to the twists and turns in the narrative. Sometimes it’s a good or evil twin, or a doppelganger across time and space, and in some situations it’s an extension of their personality. Duality is also a way of showcasing the ultimate tryst between good and evil, strong and weak, which can be two sides of the same coin.

Here are seven K-dramas where the leads gave us some impressive dual roles to remember. Once upon a time in the Bronze Age, the mythical land of Arth and Wahan, the indigenous clan, face a gruesome fate. They are oppressed and trafficked by the powerful ruling tribe who lay siege to their resources and arrest their people.

Eun Seom ( Song Joong Ki ) is an Igutu (born from the union between a human and Neanthal, supernatural blue blooded beings), who has been raised by the Wahan clan and has now become one of them. Eun Seom has extraordinary strength and is also a hunter par excellence. He is in love with Tan Ya ( Kim Ji Won ), a descendent of the high priestess of Wahan.

When the tribe is attacked and Tan Ya is taken prisoner, Eun Seom decides to put himself in the forefront to free his people. Little does he know that in the palatial corridors of the very oppressors is his own lookalike, his long-lost twin brother, Sa Ya. Sa Ya had been raised by the ambitious Ta .