Mark 15:32

‘And those who were crucified with him reproached him.'

If they knew of Him, and they probably did, they possibly now felt bitter that He had chosen His own way and not theirs. If only He had added His popularity to theirs they might have made a better job of the insurrection. Their failure was thus, to them, partly His fault. It was only later that one of them, observing Jesus' behaviour in the face of what was done and said to Him, was made to reflect and change his mind (Luke 23:40).

So He was reproached by the people, by the religious leaders and by those who were suffering with Him. All were united against Him for different reasons. The verbs are in the imperfect tense. The mockery continued for some time. He had no respite.