Chapter 1 begins with Kyd’s The Spanish Tragedy by analysing the mimetic ethical exercise inherent to Kyd’s design. In particular, this chapter analyses the onstage uses in The Spanish Tragedy of disrupted missives, purloined letters and misquoted texts as offering the necessary space for the emergence of a new ‘counterfeiting’ theatrical ethic which eschews moral meaning beyond the immediate effects of what the staged performance can display. As this chapter shows, such mimetic ethical entanglement is often enacted through the theatrical translation of humanist ethical values of Christian Erasmian virtue into an epistolary emblem of writing, sending and intercepting letters. These letters and emblems of writing, in failing to arrive at their destination, frame a moral void in which the excesses of revenge unfold onstage in surprising and unpredictable ways.