| Episode cast overview, first billed only: | |||
| Zachary Levi | ... | Chuck Bartowski | |
| Yvonne Strahovski | ... | Sarah Walker | |
| Joshua Gomez | ... | Morgan Grimes | |
| Ryan McPartlin | ... | Devon 'Captain Awesome' Woodcomb | |
| Mark Christopher Lawrence | ... | Big Mike (credit only) | |
| Vik Sahay | ... | Lester Patel | |
| Julia Ling | ... | Anna Wu | |
| Scott Krinsky | ... | Jeff Barnes | |
| Sarah Lancaster | ... | Ellie Bartowski | |
| Adam Baldwin | ... | John Casey | |
| Jonathan Cake | ... | Cole Barker | |
| Robert Picardo | ... | Perseus | |
| Bonita Friedericy | ... | General Diane Beckman | |
| Vincent Duvall | ... | Duncan | |
| Anthony Palermo | ... | Paolo | |
Cole Barker's abduction by kidnapping causes the team to going red alert, but the MI5 ace, whom even Casey admires, not only held out extensive torture, he escaped and came warn them Fulcrum is after Defense Department scientist Perseus, one of the architects of the intersect. Despite their implicit rivalry for Sara, they collaborate well at the Italian consulate to find and save Perseus, whom Chuck hopes in vain may help him remove the Intersect. Meanwhile Jefster helps Morgan trying to scare off Abba, who found his apartment lease and assumes she, not Chuck, is his chosen house-mate. Written by KGF Vissers