The ghost of Hamlet's father is a character from William Shakespeare's play Hamlet. In the stage directions, he is referred to as "Ghost". His name is also Hamlet, and he is referred to as King Hamlet
Illustration of the Ghost by Thomas Ridgeway Gould from an 1890 printing of Hamlet
Hamlet and his Father's Ghost (William Blake, 1806)
Hamlet attempts to show his mother the ghost of his father (Nicolai Abildgaard, c. 1778)
The prompt book from an 1874 staging of Hamlet by English actor and manager Henry Irving (1838–1905), in which he experimented with using limelight (burning calcium oxide) to represent the Ghost.
Horatio is a character in William Shakespeare's tragedy Hamlet.
Horatio (standing, dressed in red) with Hamlet in the "gravedigger scene". Hamlet and Horatio in the Graveyard by Eugène Delacroix, 1839
Hamlet and Horatio in the Graveyard (Eugène Delacroix, 1827–28)