Most of characters' names take inspiration from 'King Lear' -
Tony King (King Lear); Grace Regan (Regan, Lear's daughter); Ricky Cornwall (Duke of Cornwall, Regan's husband); Cliff Curren (Curan, a follower of the Earl of Gloucester); Earl Albany (Duke of Albany, Goneril's husband); Michelle Oswald (Oswald, Goneril's servant).
Hathaway mentions lyrics to several of the band's songs. These lyrics are based on lines from 'King Lear'.
"... sharper than a serpent's tooth..." from Act 1, Scene 4.
"Let us not be be mad, be mad" and "Sweet heaven, leave us in temper", based on "O, let me not be mad, not mad, sweet heaven / Keep me in temper: I would not be mad!" from Act 1, Scene 5.
Philemon and Marshall, the law firm, derives their names from minor characters in 'Pericles, Prince of Tyre'.
The rare record, "Die upon a kiss", takes its title from "Othello" : Act 5, Scene 2 -
Othello: " ... Killing myself, to die upon a kiss."
The band takes its name from Caliban, a character in 'The Tempest'.