After playing Jung Joon-ho's love interest in The Twins, Yoon was cast in Shadowless Sword, a wuxia martial arts epic set in ancient Korea.

In the role of a beautiful young swordswoman who protects the future king, Yoon said that she was inspired by Anita Mui in The Heroic Trio,[7] and that the strong-willed female character appealed to her.

Even though her dramas do not attract a large number of viewers, Noh has gained a cult following for her in-depth portrayal of ordinary characters, taking a more human natural approach through realistic and yet emotional lines.

Since then she has been extremely active in charity work for JTS, spearheading street fund drives and various programs to benefit underprivileged children in North Korea and developing countries.

She later enrolled in Dongguk University as a Theatre and Film major, slowing down her acting activities to focus on her studies and becoming known in the Korean press as one of the very few celebrity model students, with regular attendance and good grades.

Yoon returned to the big screen in Try to Remember, about lovers in the past whose love transcends time and brings them together in the present day, premiered at the 2010 Puchon International Fantastic Film Festival.

Titled Byeongnucheon ("The Bracelet of Blue Tears"), the fantasy adventure aimed to spearhead Korea's nascent stereoscopic film industry, combining live action sequences with 3D animated computer graphics.

[19] She immediately followed that with the Channel A cable series Color of Woman, replacing Eugene as the romantic comedy lead when the latter dropped out in the aftermath of her sister's car accident.