This study compares the use of theatricality practiced by Rochester in Charlotte Brontë’s Jane Eyre, with the theatrical strategies employed by Prince Henry and Falstaff in Shakespeare’s King Henry IV, focusing on the Shakespearean allusion. These characters rely on theatrical tactics to achieve their respective objectives. Falstaff primarily pursues his own benefits and, through his decadent and debauched lifestyle, plays a role in assisting the prince in delaying the exposure of the prince’s authentic identity. However, he undermines the values and legitimacy that the prince strives to protect. Even though Prince Henry strategically adopts Falstaffian practices, he never harms language and societal norms because his enactment of an irresponsible prince aims to highlight his virtues of kingship and gain respect from the court. Rochester, similar to Falstaff’s self-serving use of theatricality, ultimately seeks to exploit Jane by manipulating her into revealing her love and becoming his mistress. Rochester’s aim to feign his identity resembles Falstaff’s deceitful methods, which undermines the values and language. This intertextual and comparative approach illustrates how Rochester emerges as the faithful practitioner of Falstaffian theatrical practices, for which Charlotte Brontë reuses Falstaff’s utterance through Rochester.