All those called by the name of Christ are indeed disciples.

All those whom are Christs have the annointing of Christ Spirit within them. For those who do not are none of His. This is why Jesus says one must be born again. We have only one mediator between us and the Father and this is Christ.
There is a distinction:
John 17
Jesus Prays for Himself
1After Jesus said this, he looked toward heaven and prayed: "Father, the time has come. Glorify your Son, that your Son may glorify you.
Jesus Prays for His Disciples
6"I have revealed you to
those whom you gave me out of the world. They were yours; you gave them to me and they have obeyed your word. 7Now they know that everything you have given me comes from you. 8For I gave them the words you gave me and they accepted them. They knew with certainty that I came from you, and they believed that you sent me. 9I pray for them. I am not praying for the world, but for those you have given me, for they are yours. 10All I have is yours, and all you have is mine. And glory has come to me through them. 11I will remain in the world no longer, but they are still in the world, and I am coming to you. Holy Father, protect them by the power of your namethe name you gave meso that they may be one as we are one....
17Sanctify
them by the truth; your word is truth. 18As you sent me into the world,
I have sent them into the world. 19
For them I sanctify myself, that they too may be truly sanctified.
Jesus Prays for All Believers
20"
My prayer is not for them alone. I
pray also for those who will believe in me through their message, 21
that all of them may be one, Father, just as you are in me and I am in you. May they also be in us so that the world may believe that you have sent me. 22I have given them the glory that you gave me, that they may be one as we are one: 23I in them and you in me.
May they be brought to complete unity to let the world know that you sent me and have loved them even as you have loved me.