Sure He is.
When speaking of The Holy Spirit, it means to speak of God's Spirit, and means one is speaking about God Himself. And God is a Person. He is manifested by The Father, The Son, and The Holy Spirit Comforter.
Dan 7:13-14
13 I saw in the night visions, and, behold, one like the Son of man came with the clouds of heaven, and came to the Ancient of days, and they brought him near before Him.
14 And there was given him dominion, and glory, and a kingdom, that all people, nations, and languages, should serve him: his dominion is an everlasting dominion, which shall not pass away, and his kingdom that which shall not be destroyed.
(KJV)
Ps 110:1
1 The LORD said unto my Lord, "Sit thou at My right hand, until I make thine enemies thy footstool."
(KJV)
It's not a mistake that the "He" is in the first person in the following...
John 14:16
16 And I will pray the Father, and He shall give you another Comforter, that He may abide with you for ever;
(KJV)
If we speak of The Father, The Son and The Holy Spirit are automatically included. If we speak of The Son, the Father and the Holy Spirit are also included. Thus if we speak of The Holy Spirit Comforter, The Father and The Son are also automatically included. Their Divine Nature cannot be separated.
Be careful that you don't slide into the "God of forces" idea per Dan.11:38. The Godhead is about three Divine Entities existing as One.
The holy spirit is not a person, but is God's active (not latent) force. Though the holy spirit is called "the helper" (Greek
paraclete [comforter] ) at John 14:26 and is not a person, so is wisdom not a person but spoken of as having "children" (Luke 7:35) and of Jesus as being "filled with wisdom"(Luke 2:40) just as the 120 disciples on the day of Pentecost were "filled with holy spirit".(Acts 2:4) Furthermore, death is said to have "ruled as king from Adam down to Moses" and yet death is not a person. The use of metaphors to express thoughts is a common practice with almost every language. The use of non-living objects are, at times, spoken of as living or even a living person.(Judges 9:14, 15)
David, after his sin with Bathsheba, asked God to "put within me a new spirit, a steadfast one....and your holy spirit O do not take away from me."(Ps 51:10, 11) Just as the "new spirit" or new driving force that David requested was not a person, so likewise of the holy spirit, for it is God's active force (or motivating force) that empowered David to change his conduct to one that is now clean in God's eyes. Even the use of God having "eyes" (Prov 15:3) is not literal, but only put within the characteristics of language to make the Bible understandable to us.
At Proverbs 17:22, it says that "a heart that is joyful does good as a curer, but a
spirit that is stricken makes the bones dry." Is the "spirit" here a person ? Even modern dictionaries recognize that the word "spirit" means "1. Life force of individual: a vital force that characterizes a living being as being alive; 2. will: somebody's will, sense of self, enthusiasm for living; 3. disposition: somebody’s personality or temperament; 4. attitude: somebody’s attitude or state of mind".(
Microsoft® Encarta® Reference Library 2005) The writer of Psalms 104 said of God, that "if you conceal your face, they get disturbed. If you
take away their spirit, they expire, and back to their dust they go."(Ps 104:29) Is the "spirit" here a person ?
Thus, the holy spirit is God's active force, his "power" and not a person, for the apostle Paul wrote to the Romans: "May the God who gives hope fill you with all joy and peace by your believing, that you may abound in hope with
power of holy spirit."(Rom 15:13, 19) Just as "joy and peace" are not persons but can "fill" a person, so likewise is the holy spirit not a person but God's active force that is never dormant, but always active.(Gen 1:2)