Sanchez is a character who makes a one-time appearance in the Season 1 episode titled "Mad Over Miami".
Sanchez is a Cuban right-wing rebel who runs a private army comprising marielitos, cuban criminal gangs formed from emigres. When Ivan Rivera arranges a ransom for two Cuban political prisoners with the Cuban Colonel Fernandez, Dominic is asked to fly the ransom money of $2 million to Cuba but the ransom money is hijacked by an unknown Hughes 500 helicopter with armed troops on board.
Sanchez becomes Hawke's prime suspect as the hijacker of the ransom money, especially when Ivan Rivera reveals that he had borrowed half the money from Sanchez. Sanchez was a murderer and drug smuggler but also it seemed, the most organised among the marielitos. He runs a well armed private army which trained on a secret base in the Florida Keys.
Hawke and Dominic take Airwolf to find and shoot up Sanchez's camp but it turns out that Sanchez is being armed by none other than ... Archangel! Sanchez, Archangel explains, is being armed to fight Communism in South American trouble spots. But things get more complicated. Sanchez is also working on his own account and in league with his "enemy" Colonel Fernandez. And he sets his sights on getting Airwolf for himself.