Favorite Male Sidekicks in a Kdrama

Too often the protagonist's sidekick(s) is/are just comic relief. But some sidekicks go above and beyond in their awesomeness and make you wish they had a drama of their own. Here are the characters and the titles are below: Eun Si Kyung; Moo Hyul; Bae Man Deok ("ahjusshi"); the Joseon Power Rangers; Ma Roo; Soo.