Hornblower must deliver a French nobleman to a secret rendezvous near Brest, all while coping with enemy agents in his own ranks.
| Actor | Role |
|---|---|
 Ioan GruffuddHoratio Hornblower | Horatio Hornblower |
 Robert LindsayAdmiral Sir Edward Pellew | Admiral Sir Edward Pellew |
 Paul McGannLieutenant Bush | Lieutenant Bush |
 Lorcan CranitchWolfe | Wolfe |
 Tony HaygarthMaster Prowse | Master Prowse |
 Julia SawalhaMaria Mason | Maria Mason |
 Paul CopleyMatthews | Matthews |
 Sean GilderStyles | Styles |
 Greg WiseMajor Côtard | Major Côtard |
 Ian McElhinneyCaptain Hammond | Captain Hammond |
 Christian CoulsonMidshipman John 'Jack' Hammond | Midshipman John 'Jack' Hammond |
 Ron CookSteward James Doughty | Steward James Doughty |
 Jonathan ForbesMidshipman Charles Orrock | Midshipman Charles Orrock |
 Jim McManusPawnbroker | Pawnbroker |
 Barbara FlynnMrs. Mason | Mrs. Mason |