The Arabs were a human ethnic group.
Ingmar Knopf directed a film featuring an Arab sheik and his harem, and had hired Professor Webster, an expert on Arab customs, to assist him. (TV: The Daleks' Master Plan)
Kebiria was a war-torn Arab country in north Africa visited by the Third Doctor and Jo Grant. (PROSE: Dancing the Code)
Garron was forced to flee Earth after he refused to sell the Sydney Opera House to a wealthy Arab. (TV: The Ribos Operation)