Do all three persons of the Godhead have mind, will, and emotion?
Yes, all three persons of the Godhead have mind, will, and emotion. The Father, the Son, and the Holy Spirit each possess these three aspects, which together constitute personality. Scripture provides verses affirming this for each member, and this is what makes a personality.
Les explains that mind, will, and emotion are three aspects of our innermost being, which he calls the personality or the real you. He then applies this to the Godhead: God the Father, God the Son, and God the Holy Spirit. Each has enough scriptural verses to support that the Father has mind, will, and emotion, the Son has mind, will, and emotion, and the Holy Spirit is also a person who has mind, will, and emotion. That is what makes a personality, and it is in that area of the person that we were created in the image of God, because God has all these attributes. Les also notes that when God created Adam, He gave him that invisible personality and placed within Adam a spirit concept to connect him with his Creator, so Adam had total and complete fellowship with God from the beginning.