Hugo Panzer, portrayed by "Stone Cold" Steve Austin, is a former agent for the Ring and is also a Volkoff Industries operative. He partners with Ring operative Serena and they, in "Chuck Versus First Class", are transporting the key to the Ring Intelligence Safe on a flight from Los Angeles to Paris, France. He is an expert at close-range combat and uses a short sword that he keeps in his checked luggage.
Chuck, who happens to think his first solo mission starts when he gets to Paris, is on the same flight as Hugo and flashes and identifies him as an agent of the Ring. After contacting the rest of Team Bartowski that happens to be observing him from Castle, he discovers that his mission is actually on the plane and is to steal the key from Hugo. Chuck manages to drug Panzer, with a KGB Knockout Pen, and takes his baggage claim ticket. Chuck sneaks into the cargo hold and recovers the key, but is confronted again by Panzer, who has recovered thanks to a Ring wrist device on his arm which shocks him awake if his heart rate falls too low. Chuck finds a fencing saber in the baggage, flashes, and uses it to subdue him before rejoining Hannah on the passenger deck.
Hugo's teammate, Serena, manages to poison Chuck through his drink and forces him back to the cargo deck where she and Panzer demand he return the key. He manages to escape when Sarah and Shaw take control of the aircraft remotely and the two enemy agents are knocked unconscious. After being rendered unconscious three times during the flight, Hugo is apprehended upon arrival in France.
In "Chuck Versus the Cubic Z", Hugo manages to escape his CIA cell while being temporarily stationed in Castle for a new transport vehicle and attempts to kill Heather Chandler who also works for Volkoff. He was assigned to assassinate her for ruining Volkoff's $500 million deal. They were both arranged by Volkoff's men to be in the same transport that broke down which temporarily stationed them together.
- The name is presumably intended to evoke the armor and tank aspects of Panzer.
- According to Chuck's flash on the CIA Security Briefing, Hugo was born in Tacoma, Washington in 1971. He was also an Olympic martial arts team candidate, presumably in judo.