One Piece Blue Deep: Characters World is the fifth databook that went on sale on March 2, 2012.
The fifth databook was announced to have the following content:
- 321 characters, including birthdays.
- Devil Fruits, Haki, ships, science: everything you need to know about the New World.
- Pirate History Romance Dawn - Chapter 0 of One Piece.
Here is a list of all the named characters which this databook has provided:
- Scopper Gaban
- Vice Admiral Stainless
- Vice Admiral Mozambia
- Vice Admiral Cancer
- Dr. Kurotsuru
- Ishigo Shitemanna
- Dr. Kyukyu
- Judge Jorge
There was also a character initially named as "Happa" by the author on an SBS who was labeled as "Yamao" in this databook. When questioned about the inconsistency, Oda simply responded that the man's full name is Happa Yamao.
- Sergeant Cosmo
- General Galaxy
- Colonel Macro
- Captain Seamars
- Terry Gilteo
- Captain Goo
- Chief Petty Officer Asahija
- Rear Admiral Sicily
- Commodore Daigin
- Prince Bellett
- Vice Admiral Bastille
- Outlook III
- Ahho Desunen IX
- Ahho Zurako
- Bunny Joe
- Dr. Fishbonen
- Haritsu Kendiyo
- "Iron Boy" Scotch
- Rear Admiral Catacombo
- This is the first databook to show evident incongruences such as:
- Giving Happa the "wrong" name (inconsistency later cleared). 
- X Drake's birthday (October 10) is different from the one given in the SBS (October 24).
- Shiki's Jolly Roger is accidentally replaced by the one used for Baroque Works, instead of the one shown in Chapter 0, Strong World and on Indigo's file.
- Caribou's Jolly Roger is different from the one shown on the cover page of Chapter 679.
- SBS One Piece Manga — Vol. 43 (p. 48), fan question: I want to know the name of the guy who gave Usopp the rice balls in Volume 36.
- SBS One Piece Manga — Vol. 76 (p. 134), Oda confirms the full name as Happa Yamao.
- SBS One Piece Manga — Vol. 64 (p. 66), Oda accepts October 24th as being X Drake's birthday.