The primary protagonist in the play is Thomas Stukeley. Critics contend that the primary protagonist is determined by the reader's socio-political predilection. Thus, one might argue that Sebastian or Philip are alternative protagonists due to their significant religious and political involvement in the text. However, Abdelmelec (a fair skinned Moor) and his usurping nephew Muly Mahamet (a dark skinned Moor) are regularly recognised as central to the racial discourse that "Alcazar" is fundamentally concerned with. Sebastian is the play's largest role.