Narkos is a representative of The Ruler on Mercury.
During the events of Commando Cody: Sky Marshal of the Universe, Season 1 Episode 11 Lost in Outer Space played by John Crawford
Narkos tells the others that Commando Cody has spotted them. R-7 Crew Member tells Narkos that they are pulling ahead of Commando Cody and Narkos tells Baylen to get ready to jump out of the rocket. Baylen and R-7 Crew Member act like they are fighting and Baylen jumps off the rocket. Narkos calls The Ruler and tells him they have accomplished their mission. The Ruler then tells Narkos to heads towards Mercury to lay a trap for Commando Cody. Later, Baylen calls Narkos and tells him where Commando Cody's rocket it located. Narkos tells Baylen that he and R-7 Crew Member stole the Mercurian sacred jewels and they plan on betraying The Ruler and selling them on Earth. Narkos and R-7 Crew Member get to the rocket and take off. Commando Cody lands on the rocket and sneaks inside. He gets into a fight with R-7 Crew Member and then Narkos and Dick trips Baylen and pins him to the ground. Commando Cody knocks Narkos unconscious and takes over the rocket.
During the events of Commando Cody: Sky Marshal of the Universe, Season 1 Episode 12 Captives of the Zero Hour played by John Crawford
Narkos calls The Ruler and tells him that he has captured Commando Cody and his rocket. The Ruler tells him that he will go to Mercury to fly Commando Cody's rocket himself. Narkos gets off the radio and Commando Cody has Dick Preston handcuff him. Dick lands the rocket and Commando Cody, Dick and Joan Gilbert leave. The Ruler walks to Commando Cody's rocket and finds Narkos, Baylen and R-7 Crew Member handcuffed. The Ruler asks Narkos what happened and Narkos lies and tells him that Commando Cody tricked him. The Ruler has Zerak release them and then tells Baylen that they will all be disciplined. The Ruler tries to fly the rocket, but it doesn't work and Narkos finds out about the missing needle valve. The Ruler tells Zerak to get a spare one from his rocket and orders Narkos and R-7 Crew Member to stand guard outside. Narkos sees Commando Cody and starts shooting at him and Commando Cody fires back and kills Zerak. Narkos and R-7 Crew Member run back into the rocket and tell The Ruler. Commando Cody and Dick take Narkos and R-7 Crew Member hostage and make them walk into the rocket. A fight breaks out and Baylen is shot dead. The Ruler accidentally shoots R-7 Crew Member dead and Commando Cody shoots Narkos dead.