WILLIAM SHAKESPEARE: The Tempest

Read the extract and answer the question

Caliban: Ay, that I will; and I'II be wise hereafter,
And seek for grace. What a thrice-double ass
Was I, to take this drunkard for a god,
And worship this dull foot!

Prospero : Go to; away!
Alonso : Hence, and bestow your luggage where you found it.
Sebastian : Or stole, rather.
(Act V, scene one lines 293 - 299)

''this drunkard'' is