Sir Andrew first appears in the third scene of Act I, as the so-called friend of Sir Toby Belch. Sir Andrew is a guest at the home of Sir Toby's niece Lady Olivia, where Sir Toby, a drunkard and glutton, resides. Although we are not made aware of Sir Andrew's family or connections, it is said that his annual income is 3,000 ducats, a significant amount and roughly equal to that of a skilled craftsman of the period, leading us to assume that he is a gentleman of some leisure. Ineptly, Sir Andrew attempts to court Olivia, and her rejection of him, in favour of dashing Cesario, prompts Sir Andrew to challenge Cesario to a duel. His slow-witted nature allows Sir Toby perfect opportunity to take advantage of him, openly admitting that by misusing Sir Andrew's generosity and gullibility, he has milked him for approximately two-thirds of his stated income. Sir Andrew fancies himself a great dancer and swordsman, and the scenes where he ineptly engages in these activities are points of physical comedy in the play. Sir Andrew's age is not made clear, but it is assumed that he is a number of years younger than Sir Toby.