|Known relatives:||Mohammed Ben Kalish Ezab (father), Unknown mother|
|Occupation:||Crown Prince of Khemed|
|Behind the scenes|
|First Appearance:||Land of Black Gold|
|Last Appearance:||Tintin and Alph-Art|
Abdullah is the only son of Mohammed ben Kalish Ezab, the Emir of Saudi Arabia.
He is an extremely spoiled, mischievous and hyperactive child, as well as an incurable prankster who loves to play tricks and set traps on unexpected visitors, including his father. After first appearing in the Land of Black Gold, the Emir Mohammed ben Khalish Ezab and his son reappear in The Red Sea Sharks, after the Emir had been temporarily overthrown in a coup d'etat by rival tribe leader Bab El Ehr. Abdullah is entrusted by the Emir to Tintin's care as a result. The Emir's son is a serial practical prankster whose favorite target is the short-tempered Captain Haddock. At the conclusion of The Red Sea Sharks, father and son are presumably reunited. He is then mentioned in Tintin in Tibet. He appears in Tintin and Alph Art staying with his father at Rastapopulu's villa in Italy.
- Abdullah is based on Faisal lI of Iraq.