Amina Mustafa Gamal was born to an Egyptian father and a Greek mother. She began her acting career at a very young age. She played the daughter of Imad Hamdi and Madiha Yousri in "Akwa men al-hobb" ("Stronger Than Love"). Mimi continued to act as a young woman. She worked on stage with the Al-Fannaneen al-Mottahedeen troupe (United Artists) and in several private theater troupes. She became widely known for her numerous television roles. Among her very successful plays are: "Nemra etnein yeksab" ("Number Two Wins"), "Al-abeet" ("The Fool"), "Motreb al-awaatef" ("The Emotional Singer"), and "Esh al-maganeen" ("The Cuckoo's Nest"). Mimi also appeared in TV series; "Hawaanem Garden City" ("The Ladies of Garden City") and "Al-dawwaama" ("The Whirlpool") are two successful examples.

Mimi is married to actor Hassan Mostafa, who was her partner in many plays, and has borne him two daughters.