| Location of appearance | Title | Character | Gender | Age | Hair Color | Hair Style | Features | Costume |
| Detective | Hercule Poirot | M | 50+ | Dark | Thinning | Nice moustache | ||
| Captain | Hastings | M | 50+ | |||||
| Chief Inspector | Japp | M | 50+ | |||||
| Miss | Lemon | F | 40+ | |||||
| In costumes | Eustace Beltane | M | 50+ | Dark | Chubby. A bit broke. Cronshaw's uncle | Orangish suit. Black hat with red and blue flies and yellow edge | ||
| In costumes | Viscount | Cronshaw | M | 30+ | Dark | Coco's boyfriend | White/pink triangle harlequin suit, big black hat | |
| Radio play | Radio actor | Coco Courtney | F | 30+ | Orange | Right curling wave | Went home from the ball with Chris | White/pink triangle harlequin suit, big black white-edged hat with silvery flower |
| Radio play | Radio actor | Chris Davidson | M | 30+ | Dark | Left combed wave | Looks similar to Cronshaw | Pointy white hat, pantomime suit |
| Taxi | Mrs | Davidson | F | 20+ | Blonde | Chris' wife | Flat soupdish white hat, pantomime suit | |
| Taxi | Mrs | Mallaby | F | 40+ | Dark Chestnut | Widow. A friend of Eustace according to Cronshaw | Orangish suit, smaller black hat. | |
| Radio play | Radio director | James Ackerly | M | 40+ | Dark grey | Back combed | Sheikh | |
| Ball | Porcelain Dealer | Van Meer | M | Sold figurines to Eustace, wants to sell some china | ||||
| Ball | Victory announcer | M | 60+ | Whitish | Beard | |||
| Butler | M | 70+ | Thinning | |||||
| Radio Receptionist | F | 40+ | Light brown | Wavy | ||||
| Coroner | M | 50+ | Dark | Thin |