'Cuca Legal' tells the story of Mário Barroso, a single aviator involved with three women at the same time: Virgínia, Irene, and Fátima. Virgínia is a wealthy businesswoman obsessed with the direction of her late father's business; Irene is a middle-class young woman who gives private piano lessons; and Fátima is a poor widow. Mário can't decide which of them is the ideal woman to give him a child with a "cool head" (cuca legal). Things get even more complicated when Maria Joaquina, nicknamed Kinu, Virgínia's mother, also catches the aviator's attention. To escape the troubles he constantly gets into, Mário relies on the help of his mother, Dalva, and Jacaré, his great friend.

Francisco Cuoco
Mário Barroso

Yoná Magalhães
Fátima

Suely Franco
Irene

Françoise Forton
Virgínia

Rosamaria Murtinho
Kinu (Maria Joaquina)

Hugo Carvana
Celso Maranhão (Jacaré)

Elza Gomes
Dalva (Madame Zaide)

Mário Lago
Aureliano Villaça

Herval Rossano
Fausto Aragão
Coach66%
Petticoat Junction58%
My Three Sons66%
American Housewife77%
A Grande Família84%
Passione68%
Leave It to Beaver69%
Who's the Boss?74%
Never Give Up77%
Chiquititas83%
The Odd Couple78%
NewsRadio73%
Shifting Gears64%
The Villains of Valley View73%
Nick Cannon Presents: Wild 'N Out80%
Rowan & Martin's Laugh-In67%
One Day at a Time67%
Raising Hope74%
The Carol Burnett Show77%
Father Knows Best66%