how would you characterize the captain

The captain of the Ipecacuanha (the ship that first rescues Prendick) is a drunken brute with a tendency to swear violently. The reader learns his name only through Charles Edward Prendick's introduction, since Prendick simply refers to him in the rest of the story as "the captain. Belligerent and cruel, he would rather cast Prendick back into the ocean than take him past Moreau's island, and soon enough he does just that.