They were greatly disturbed because the apostles were teaching the people, proclaiming in Jesus the resurrection of the dead.

And as they spake unto the people, the priests, and the captain of the temple, and the Sadducees, came upon them, 2 Being grieved that they taught the people.

as well as Annas the high priest, Caiaphas, John, and Alexander, and as many as were of the family of the high priest, were gathered together at Jerusalem.

He explicitly means Annas, Caiaphas, and the other Sanhedrin members who personally orchestrated the murder of their own Messiah. We don't know who Alexander ...

Annas the high priest, and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest, were gathered together at Jerusalem.

6 with qAnnas the high priest and rCaiaphas and John and Alexander, and all who were of the high-priestly family. 7 And when they had set them in the midst, ...

6 And Annas the high priest, and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest, were gathered together at Jerusalem.

And Annas the high priest, and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest, were gathered together at Jerusalem.

Acts 4:6-14 New Century Version (NCV) Annas the high priest, Caiaphas, John, and Alexander were there, as well as everyone from the high priest's family.

With great power the apostles bore witness to the resurrection of the Lord Jesus, and great favor was accorded them all.