
The Expanse · Character
Praxidike Meng
Also known as Dr. Meng, Dr. Praxidike Meng, Meng
- Major
- First seen · Book 2 · Ch. 3
Praxidike Meng is a major character in The Expanse (Book 2).
- Gender
- male
- First appears
- Book 2 · Ch. 3
- Books
- 1
Description
A small, stick-thin human man with Chinese features, salt-and-pepper hair, and a week’s growth of beard. His face can appear sunken and wasted after prolonged deprivation; he is described as awkward-looking and smaller than Holden. His clothing varies across the story, including civilian clothes, jumpsuits, pressure suits, armor, and borrowed gear.
Connections
Family & partnersFriends & mentorsRivals

Mei Mengfather
Prax is Mei’s devoted father and searches desperately for her after she disappears during the Ganymede crisis. He keeps hoping she is alive because she urgently needs her medicine.

Alex Kamalally
Alex helps transport Prax and supports his effort to find Mei. Their conversation aboard the Rocinante offers Prax both sympathy and a sense of welcome.

Amos Burtonprotector
Amos protects Prax and helps him prepare for the dangerous rescue. He initially refuses to let Prax join the armed team, but gives him a loaded pistol when he understands Prax must be there for his daughter.

Avasarala treats Prax with sympathy and candor, understands that his hope for Mei shapes his choices, and refuses to destroy Io before they can search for the girl.

James Holdenconflicting source relationships
Holden and Prax are allies whose efforts were bound up in finding Mei and responding to the Ganymede crisis. They remain part of the same close circle aboard and around the Rocinante crew.

Naomi Nagataconflicting source relationships
Naomi supports the operation remotely from the ship, tracks events through suit cameras and prepares the Rocinante for the group's escape.

Roberta Draperconflicting source relationships
Bobbie leads Prax during the rescue and ensures he can reach the children. Afterward she expresses sincere relief that he has Mei back.
- BM
Basia Mertonconflicting source relationships
Prax and Basia are fellow fathers whose children, Mei and Katoa, have both gone missing. Their shared grief initially connects them, but they clash violently when Basia decides to leave Ganymede with his surviving children.
- CS
Carlos Stricklanddoctor
Strickland treated Mei’s serious spinal infection and recognized the condition that required ongoing medication. Prax considers him an important part of the care that kept Mei alive.
- DB
Doris Bournecolleague
Doris works alongside Prax on Ganymede. She urges him to evacuate as the orbital mirror threatens his greenhouse, and they escape together.
- DA
Dr. Astriganpatient’s parent
Astrigan is Mei’s pediatrician. Prax repeatedly seeks information and help from the doctor, who promises to call if she learns anything but later appears not to remember their conversation.
- HF
Holden's familyrecipient of support
Holden’s family is among the people Prax has already contacted while seeking help for Mei; the passage gives no further detail about their individual involvement.
- NM
Nicola Mulkoconflicting source relationships
Prax and Nicola are separated, and their marriage ended amid the demands of Prax’s work. They share custody-related obligations concerning Mei; Nicola has recently contacted him about a child-support judgment.
- NA
Nurse Abuakárpatient’s nurse
Abuakár was involved in the medical support network Prax relies on while searching for Mei; Prax learns that she has died.
- DM
Dr. Moynahaninformant
Moynahan recognizes the man in the abduction footage as former colleague Carlos Merrian and gives Prax information that helps identify Strickland.
- KM
Katoa Mertondaughter’s friend
Katoa is part of the group of children connected through the families’ medical support network and is Mei’s companion. His disappearance intensifies Prax’s search and his bond with Basia.
Story so far
BOOK 2Caliban's War
Key events
Gallery
Book 2: Caliban's War
Appearances
Meet Praxidike Meng in Bookworm
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