Episode 3.14

“Chuck vs. the Honeymooners”
Airdate: April 26, 2010
Gallery: Promotional Photos | Screencaps

Official Synopsis – added 04.09.10
Chuck AND Sarah GO ON A EUROPEAN ADVENTURE – While in Europe, Sarah (Yvonne Strahovski) and Chuck (Zachary Levi) realize they’re traveling on a train with Spanish spies. Even though they’re all alone, they decide to take on these rogue agents. Of course, this impromptu mission doesn’t go smoothly. Meanwhile, Beckman (Bonita Friedericy) orders her newest unlikely spy team – John Casey (Adam Baldwin) and Morgan Grimes (Joshua Gomez) – to track down the missing couple. Sarah Lancaster, Ryan McPartlin, Scott Krinsky and Vik Sahay also star.

Casting Call – added 01.12.10

[JUAN DIAZ ARNALDO] Early 40s.. a Javier Bardem, type, scruffy, handsome, actually rather articulate and sensitive, Arnaldo is a renowned Basque terrorist who happens to be traveling with his two thugs on the same train as Chuck and Sarah. Despite his violent background he’s a rather refined European gentleman who can be gracious and charming, especially to Sarah…GUEST STAR (6)

[MUSTACHE MAN] This French man with a mustache seems somewhat menacing and treacherous, until it’s revealed he’s a steward on the train carrying Chuck and Sarah. He brings many room service meals to them in their compartment, and wryly reminds them that the train does have a dining car…8 lines, 4 scenes (1)

[CANADIAN WOMAN/ELIA] This apparently innocuous Canadian woman on the train is actually a former accomplice of Arnaldo’s, who’s involved in a plot to retrieve him and bring him to justice for selling out their Basque terrorist group. She is tough, fearless and relentless…2 speeches & 4 lines, 4 scenes (6)

[THUG #1/INTERPOL AGENT #1; THUG #2, INTERPOL #2] These two Spanish thugs traveling with renowned Basque terrorist Juan Diaz Arnaldo…5 lines, 3 scenes; 1 line, 3 scenes respectively (6)

[POLISH ROCKER] This skinny Polish punk rocker in chains and tats is another passenger on the train. Sarah strikes up a conversation with him in Polish in order to stealthily relieve him of his handcuffs…1 line, 2 scenes (6) SPEAKS POLISH

(source)