He posted to Instagram, "If Ryeowook�has Hyungsik�then Donghae�has Minhyuk. With Chan Young from 'Heirs'. After making a deal with Kim Eun Sook, I have a cameo on 'Heirs'. I'll tell you what sort of deal I made with Kim Eun Sook on 'War of Words'. Please watch 'Heirs' a lot! It's really funny. Let's hit 90% in viewer ratings when I'm on it."

Heechul also took a photo with CNBLUE's�Minhyuk, who currently plays the role of 'Chan Young' on 'Heirs'. The producers of the show revealed that the Super Junior member will be making an appearance on 4 episodes, and that�VIXX�and 2EYES�will also have cameos on the show.

Watch Heechul on the upcoming episode of 'Heirs' on October 17!