- Isaac Morris-Was hired by Mr.Owen to purchase Soldier Island on his behalf like the 9 guests on the island he was also responsible for someone's death. Through his drug trade, he led a young girl to her death. He arranged that Lombard would come armed and in turn he(Lombard) would get money from Mr.Owen for it. Morris suffered from hypochondria which "Mr.Owen" gave him cocktail pills for insuring him that it would improve his health as a result Morris dies on by "overdosing" on drugs.
- Fred Narracott- is the man who takes them to Soldier Island through boat. He's instructed to not come back until he's told but he comes back earlier because he senses something is amiss and finds the 10 corpses.
- Sir Thomas Legge and Inspector Maine- The two detectives who are trying to solve the "Soldier Island Case"(the murder of the 10 people) but they are never able to solve it until Wargrave's confession gets found and turned in to the police.
- U.N Owen (Ulick Norman Owen)- The supposed owner of Soldier Island who sent all the invitations to the ten guests. The guests later figure that U.N stands for Unknown Owen (courtesy to Wargrave). With the revelation of Wargrave's letter We find out that Owen was him all along.
- Una Nancy Owen-Is the fictional wife of fictional U.N Owen. Blore was supposedly sent here to protect her jewels and Claythorne to be her secretary.
The Others
Minor Characters