Much Ado About Nothing is full of duality, foils, doubles, and two-face deceivers.
- In Act II, scene i there is a masquerade ball. Don Pedro pretends to be Claudio and woo Hero for him.
- Beatrice pretends to be another woman when she talks to Benedick in order to find out his true feelings for her.
- Don John pretends to be a legitimate brother and soldier. In reality, he is a villain and a bastard, a dispossessed son.
- Don John and Borachio talk to Claudio, knowing he will pretend to be Benedick in order to hear their secrets.
- Dogberry and the Watch pretend to be more ("more learned") than they really are. Really, they are a bunch of clowns.
- Borachio woos Margaret but says Hero's name to deceive Claudio and Don Pedro.
- Ursula and Margaret bait Beatrice, saying that Benedick loves her.
- Don Pedro, Claudio, and Leonato bait Benedick, saying the Beatrice loves him.
- Leonato pretends that his daughter Hero is dead in order to investigate her slander.
- Hero pretends to be her sister in order to test Claudio at the wedding.