Robert Young brings his Marcus Welby alter ego to television for one last time. Having retired, the good doctor takes a trip to Europe alone and falls in love with an American divorcee who is caring for a blind dancer.
| Actor | Role |
|---|---|
 Robert YoungDr. Marcus Welby | Dr. Marcus Welby |
 Alexis SmithTessa Menard | Tessa Menard |
 Delphine ForestAnna Dupuy | Anna Dupuy |
 Craig StevensFrank Poston | Frank Poston |
 Robert HardyDr. Price | Dr. Price |
 Betsy BlairGrace Simpson | Grace Simpson |
 Robert MacLeodAllen Simpson | Allen Simpson |
 Paul MaxwellDr. Wallace | Dr. Wallace |
| JJean-Pierre LeclercDr. Marcel | Dr. Marcel |
 Pauline LarrieuCeCe | CeCe |
| DDaniel LégerFrench Hotel Clerk | French Hotel Clerk |
| AAnna GaylotHousekeeper | Housekeeper |
| MMary MartlewRuth Wilson | Ruth Wilson |
| AAlain KlarerFrench Doctor | French Doctor |
| DDouglas HudkinsChef | Chef |