Lily Ki, known professionally as LilyPichu, is an American voice actress, online streamer, artist, and musician. Born in Queens, New York, she began her career as a content creator, gaining initial popularity on YouTube before becoming a prominent streamer on Twitch and a member of the online content creator group OfflineTV. Her background in music and art has complemented her transition into voice acting for English dubs of anime and video games.

One of her earliest major anime roles was providing the voice of Muni Ohnaruto in the 2020 series D4DJ First Mix. She is also well known for her role as Megumi Okura in several entries of the Cardfight!! Vanguard franchise, including Cardfight!! Vanguard overDress, Cardfight!! Vanguard will+Dress, and Cardfight!! Vanguard Divinez. Her performance as the character was noted in reviews for bringing depth to Megumi's personal struggles.

In anime, she voiced Yoshi in the romantic comedy Don't Toy with Me, Miss Nagatoro 2nd Attack, a supporting character known as a friend of the titular protagonist. She also voiced Kulumil in the 2022 Netflix film The Seven Deadly Sins: Grudge of Edinburgh. A significant role came in 2025 when she was cast as the lead character Nico Wakatsuki in the magical romantic comedy Witch Watch, a role she described as being part of a cute, quirky show.

Beyond her anime work, Ki is widely recognized for her voice acting in video games. She is notably the voice of the character Sayu in the globally popular game Genshin Impact, a role she landed after auditioning through her agency, Atlas. Her other video game roles include Onion Cookie in Cookie Run: Kingdom, Juno in Omega Strikers, and U-Official in Arknights. Her voice acting career is one facet of a multifaceted professional life, and her casting is often noted as an example of a popular online personality successfully entering the field of professional anime voice acting.