Actors wanted for shortfilm (UNPAID) - working title

Log-line: Urban Guerrilla group accidentally kidnap a president making their actions a lot more severe than originally planned.
This short will be shot during the last week of May, from the 26th to the 30th.

There are four roles that I am casting for this movie.
The first is the role of PEREZ. He is the leader of a small division within a much larger Guerrilla group. He is experienced in this field, having been part of this silent revolution for more than a decade. In this film, his group is tasked with kidnapping a foreign ministry officer, but with wrong intel, they end up crossing paths with the "president". Age for this role: 35-45.

The second role is that of BUTCH. He is part of the same guerrilla group, but isn't fighting for the same cause. Butch is a mercenary hired from abroad and fails to understand the implications of his actions in some cases. He sees himself more as a saviour to the people of this fictional country, and deems it worthy to do as he pleases without thinking on their behalf. I am looking for a male actor aged 30-45 for this role.

The third role is that of ROBERTA. She is the leader and front-woman of the whole freedom fighting force. She is the shot-caller. Having been fighting for a significantly long period of time, Roberta is slowly losing faith in the project, starting to believe that a victory is unattainable. I am looking a female actress aged 45-55 for this role.

The fourth and final role is that of ALBERTO PONTI. This man is a the president of a bordering foreign country who's visiting to sign an alliance agreement. Within his own borders, he is seen as a tyrant with a reputation to always take matters out on his own people. In the film, he is "accidentally" kidnapped by the guerrillas and provides the central dilemma of: Kill vs Release. For this role, I am looking for a male actor aged 45-65.