When the band signed with Musart Records the band changed its name to Los Camisas Negras ("The Black Shirts") and César Roel to Cesar Costa (honoring music arranger Don Costa). Soon after, the band disintegrated and César started a successful solo career, recording three albums with Orfeón Records. Then with RCA Mexicana he recorded romantic songs.
In 1986 he starred in the sitcom Papa soltero ("Single Dad"), a show that became a success in Latin America and then was adapted to the screen as Me tengo que casar ("I have to get married"). In the 1980s he hosted a comedy show and in 1990s a talk show with model Rebecca de Alba called Un Nuevo Día and next year Al Fin de Semana.
In 1993 he presented a show together with Angélica María, Enrique Guzmán, Manolo Muñoz and Alberto Vásquez at the Auditorio Nacional with great success. He also had a radio show called De Costa a Costa ("From coast to coast") broadcasted on Cadena ACIR. As of 2005 he has a TV show called Ensalada César ("Caesar salad") on Canal Once of the Instituo Polítécnico Nacional.