Carlos "Vibora" Ruiz is a supporting antagonist/anti-villain in the Starz series Power. He is a Hispanic drug kingpin and a friend of Ghost. He works inside the same drug distribution network as Ghost and is the leader of the Puerto Rican gang Soldado Nation.
He was portrayed by Luis Antonio Ramos.
Ruiz meets with Mexican drug kingpin Felipe Lobos to persuade Lobos to make him his new drug distributor in New York. Lobos doesn't accept Ruiz's offer as he believes Ruiz's gang isn't organized enough. Ruiz later gets attacked at a strip club by Pink Sneakers while celebrating his anniversary party. Ruiz gets stabbed but survives thanks to one of his men, Nomar Arcielo, finding him and getting him to safety. Ruiz and Tommy later force Ghost to kill Rolla after evidence turns up suggesting he is the one responsible for the attacks on their businesses. Ruiz later finds out Nomar is sleeping with his 14 year old daughter Isabel. Ruiz asks Tommy to kill Nomar. Tommy accepts and kills Nomar by stabbing him to death.
Ruiz attends Nomar's funeral and whispers to Nomar's corpse that he hopes he suffers. Later, Ruiz attends a meeting with all the gang leaders in Ghost's organization, including Serbian gang leader Vladimir Jankovic and Haitian gang leader Drifty, in order to meet up with Felipe Lobos and set up a new drug business with Kanan Starks in charge and Lobos as their distributor once Ghost is dead. However, things change as Tommy and Lobos are arrested. Tommy is released while Lobos is still locked up and the drug lords agree to have Ghost killed. Drifty and Vladimir are later killed by Ghost and Ruiz leaves New York after Ghost tells him that Lobos is going to kill them both since they both have seen his face. Ruiz and his family leave New York and go into hiding in California. The FBI tried to track them but lost trace of them after they landed in California.
FBI agent Greg Knox tracks down Ruiz and finds where Ruiz is hiding. Knox meets Ruiz at his place of employment. After leaving New York Ruiz started working as a janitor in a kitchen. Knox lies to Ruiz and tells him Lobos' men have found him and are coming to kill him and his family. Knox offers Ruiz a deal of immunity in exchange for testifying against Lobos. The deal is later called off after Lobos escapes from his prison convoy and gets killed by Ghost. Knox later offers another deal to Ruiz to snitch on Ghost which he accepts and Ruiz becomes Knox's off the books confidential informant. Ghost finds out and tells Ruiz to give the FBI a bigger catch then him. Ghost tells Ruiz to give up Serbian drug lord Milan to the FBI. Ruiz meets with Milan and discusses business with him. Tommy learns from Tasha that Ghost is planning to get rid of Milan using Ruiz. Tommy later kills Ruiz by stabbing him to death and dumps his body in a stolen car.