[3][4] Later, she became one of the showgirls of the Teatro Blanquita, where she also participated in sketches starring comedians such as José "El Ojón" Jasso and Óscar Ortiz de Pinedo, among others.

Juan Bustillo Oro gave her the small part of Petra, a maid, in México de mis recuerdos (1963).

[3] Her breakthrough came when director Fernando Cortés recommended her to portray an indigenous woman named "María" in one of Mantequilla's sketches.

[3] In an effort to make her portrayal more authentic, she observed the gestures and mannerisms of indigenous women; her own mother made dresses for the character.

The enormous success of the film spawned a series of low-budget comedies that became a mainstay in Mexican movie theaters.

[5] In the early 1960s, Velasco met Russian-born Mexican film actor and choreographer Julián de Meriche (born Vladimir Lipkies Chazan)[6] at the Teatro Blanquita.