Lucia Ella Keskin (born 9 February 2001),[2] also known as Chi with a C /ˈtʃiː/, is an English comedian, actress, writer, YouTuber and internet personality.

She began her career posting skits and videos on YouTube, before making appearances in comedy series including Big Boys and Sneakerhead.

Her first viral video was an impersonation of Gemma Collins uploaded to Facebook in 2018 and first YouTube hit was a September 2018 reenactment of Friends' pilot episode.

It is based on a dysfunctional family concept in where the daughter Chi played by Keskin, learns to cope with independence following the death of her parents.

[15][16] In March 2024, she appeared in the first episode of the third series of Mandy as Shona, a plane passenger who couldn't get the film Jumanji to play on her in-flight entertainment system.