Okar is a Yellow Martian kingdom located in the far north of Barsoom. It consists of the domed cities of Kadabra (its capitol) and Illall, and the principality of Marentina. Heavily secured, it can only be entered through the Carrion Caves.
Notable Okarians
- Salensus Oll, Jeddak of Kadabra and Okar. Captured Jeddak Tardos Mors and Jed Mors Kajak of Helium. Later slain by Jedwar John Carter.
- Talu, nephew of Salensus Oll and Prince of Marentina. Succeeded Salensus Oll as Jeddak.
- Solan, a scientist in charge of the palace switch-room.
- Sorav, a dwar under Salensus Oll.