Billie Lou Watt (June 20, 1924 - September 7, 2001) was a famed actress in animation, television and theater. She was born in St. Louis and attended Ritenour High School while forming the desire to become a professional actress. When she graduated from college, she made it into some of Broadway's most popular plays at the time, including ''King Of Hearts'' and ''Literature/LittleWomen''.

She also got into animation, where she played the leads and helped write the scripts for some of the anime adaptations of Creator/OsamuTezuka's works, including ''Anime/AstroBoy'' and ''Manga/KimbaTheWhiteLion''. When she returned to acting as herself, Billie got her longest TV role as Ellie Harper Bergman in ''Series/SearchForTomorrow'', from 1968 to 1981, while occasionally doing voice acting.

She died of lung cancer in UsefulNotes/NewYorkCity, but her legacy lives on as one of the first American actresses in anime.
!!Notable roles from Billie Lou Watt:
* The title character in ''Anime/AstroBoy''
* Christopher Peeper in ''Anime/{{Superbook}}'' (also voiced [[Literature/TheBible Eve]] in the first episode)
** Justin in ''Anime/FlyingHouse''
* The title character in ''Anime/HolsPrinceOfTheSun''
* "Jimmy Sparks" in ''Anime/{{Gigantor}}''
* The title character in ''Manga/KimbaTheWhiteLion''
* Jack (and his mother) in ''Anime/JackToMameNoKi''
* Ma Bagge from ''WesternAnimation/CourageTheCowardlyDog'' (her final role)