Bad Bishop is the anonymous screen name for Mason Gregory. He was introduced through Mona, who was having an online chess battle against him. His biggest chess opponent thus far has been Mona Vanderwaal, and the pair had formed an online friendship.
- Sex, Lies and Alibis (Indirectly mentioned)
- ...If One of Them is Dead (Screen name: mentioned)
- The Patchwork Girl (Screen name: mentioned)
- Lost and Found (Screen name: mentioned)
- Dead Week (Mentioned: revealed)
Notes and Trivia
- Their username is of a white bishop.
- This user either beat or nearly beat Mona in "...If One of Them is Dead".
- Mona and BB were supposed to meet in person for the first time in "The Ghost Sonata", however, BB never showed.
|Characters (The Perfectionists)|