Q: Context: Casey Allen Moss (born November 16, 1993) is an American actor and singer. He is best known for playing the role of JJ Deveraux on the NBC soap opera Days of Our Lives.

Question: who plays jj deveraux on days of our lives? Let's give stream of consciousness first:
To answer the question, consider the following: He is best known for playing the role of JJ Deveraux on the NBC soap opera Days of Our Lives. Therefore, the final answer is Casey Allen Moss.