English Standard Version
But Judas Iscariot, one of his disciples (he who was about to betray him), said,

American Standard Version
But Judas Iscariot, one of his disciples, that should betray him, saith,

Berean Study Bible
But one of His disciples, Judas Iscariot, who was going to betray Him, asked,

Douay-Rheims Bible
Then one of his disciples, Judas Iscariot, he that was about to betray him, said:

English Revised Version
But Judas Iscariot, one of his disciples, which should betray him, saith,

King James Bible
Then saith one of his disciples, Judas Iscariot, Simon's son, which should betray him,

World English Bible
Then Judas Iscariot, Simon's son, one of his disciples, who would betray him, said,

Young's Literal Translation
Therefore saith one of his disciples -- Judas Iscariot, of Simon, who is about to deliver him up --

John 12:4 Additional Translations ...