Relaciones Peligrosas, originally known as Fisico o Quimica, is a Spanish-language telenovela produced by United States-based television network Telemundo Studios, Miami. It is an adaptation of the Spanish television series Física o Química. It has Sandra Echeverría, Gabriel Coronel, Maritza Bustamante, Gonzalo García Vivanco, Jonathan Freudman, Mercedes Molto, Carlos Ferro, Daniela Navarro, Renato Rossini, Kevin Aponte and Ana Layevska in the leading roles of the plot.
as Mauricio Blanco
as Carmen de Blanco
as Gilberto Verdugo
as Orlando Aragón
as Ricardo Gómez
as Guadalupe 'Lupe' Guzmán
as Andrés Maximo
as Robert 'Bob' McDowell
as Diego Barón
as Sofía Blanco
as Sebastián Aragón (as Alex Hernández)
as Nora Guzmán
as Violeta Verdugo
as Cassius Dupont
as Manuel Branco
as Gonzalo Mendoza
as Miranda Beatriz Cruz
as Maximo
as Joaquin 'Joaco' Rivera
as Alejandro 'Ale' Portillo
as Patricia 'Patty' Milano
as Benita Mendoza
as Olivia Kloster
as Santiago Madrazo
as Juan Pablo Reyes 'JP'/Daniel Arambula/Gael Sánchez
as Clementina 'La Nena'
as Teresa Vargas
as Armando Madrazo
as Bertrand Dupont
as Mariela Díaz
as Soledad Cruz
as Yesenia Rivera
as Oliver Torres
as Billy Aleman
as Elizabeth Gómez
as Hector Barón
