Dr. John Caulfield/Episodes

Season Two

 * Ep 18 - Questions (mentioned only)
 * Bonus - Reasoned Advice (quoted only)
 * Ep 25 - Another Unfortunate Paradox
 * Ep 26 - Substantial Mutual Harm (mentioned only)

Season Five

 * Ep 66 - Developer's Log (mentioned only)

Season Six

 * Ep 84 - The Mistake (mentioned only)

Chronological Order

 * Ep 66 - Developer's Log (mentioned only)
 * Ep 18 - Questions (mentioned only)
 * Ep 25 - Another Unfortunate Paradox
 * Ep 26 - Substantial Mutual Harm (mentioned only)
 * Ep 84 - The Mistake (mentioned only)