Fazim is darkly coloured and very fat, with a long mustache. His lines usually make reference to food.
Hakim is pale, very thin and tall. His lines generally put a pessimistic take on the situation.
The third is slightly paler and less fat than Fazahl. He is the shortest of the three.
Role in the series
The Palace Guards once served Jafar as his minions in the Villain League. They currently serve the Sultan.