Joola-Banjal (an Atlantic language spoken in Senegal) has several constructions not mentioned in the previous works on Joola languages, which include no canonical subject. This paper puts forward a formal classification of these constructions and a description of their functions, emphasizing the contribution of this West African language to the general typology of impersonality. Most of the types of impersonal constructions found in Joola-Banjal have already been identified in other languages, but there also several points on which Joola-Banjal shows interesting particularities.