La Dinastía Casillas, Telemundo's new superseries, arrives as a spin-off, but with a soul of its own. The same main cast, Raúl Méndez, Iván Arana, Isabella Castillo, and the "new" María Fernanda Yépes, told me in an interview who's who, who's returning, who's breaking into the story, and what to expect. Ismael Casillas: The Heir ReloadedPlayed by Iván Arana, Ismael is no longer the young man who stood in Aurelio's shadow. Ever since it was leaked that Raúl Méndez was on set, fans went wild. As Raúl Méndez says, "We are not here to repeat, but to elevate."