Sigourney Gaines is one of the main characters in I Am Frankie. She is portrayed by Carrie Schroeder. She the creator of Frankie Gaines, and the mother of Jenny Gaines. She used to work at EGG as a scientist.She treats Frankie as family even though she is an android. She built five androids before Frankie was built. She built Eliza an android who has evil agenda in her system and the four androids who proceeded her (A,B,C and D) She keeps Frankie's android identity a secret.

