Stacey Jefferson is a British actress known for her voice work in English-language dubs of anime films and series during the 1980s and 1990s. Her career includes providing voices for a range of animated projects, with several notable credits in the dubbing of Japanese productions for English-speaking audiences.

Jefferson is recognized for two prominent roles in English-dubbed anime from the mid-1980s. In the 1986 original video animation Maris the Chojo, based on the manga by Rumiko Takahashi, she voiced the character Sue. Sue is depicted as a former in-ring rival of the protagonist, hailing from the same planet and possessing similar superhuman strength. Prior to this, in the 1985 science fiction film Odin: Starlight Mutiny, she took on the role of Sara Cyanbaker, a mysterious young woman who is the sole survivor of a destroyed spaceship and becomes central to the crew's quest for the legendary planet Odin.

Beyond these key roles, Jefferson's voice acting portfolio includes work on several other animated series. She provided voices for the British-produced series The Animals of Farthing Wood, lending her voice to the characters Adder and Vixen. Her work also encompasses the English-language version of the Moomin TV series, where she voiced the character Tooticky. Additionally, she was the voice of Rosa in the Japanese animated series Dark Warrior, also known as Makyu Senjo. Her filmography from this era also includes a voice role in the popular 1986 film Project A-Ko.