I've added 99% of the character names and VAs to the Other Languages list, including (more or less) when each VA took over a role and which names were reverted to the originals. For instance: in Season 5, Edna was changed back to Sarah but James was still named Ben.

Norman (Adam)'s VAs in the CGI series made things a bit complicated, since he seems to have had more than any of the other regulars - five in total - and the info about them on Ishim is "all over the place". For characters who were recast, they only mention the years during which the preceding/succeeding VAs played them and not which seasons/episodes; with the obvious exception of specials.

Is James still called Ben or Sarah's Hebrew name was Edna?

I say that Liron Lev voiced Norman (1987 series) and Arnold (1st voice), and also did the singer of The Great Fire of Pontypandy.

Yes. Hop! were apparently so "bent" on Hebraising (most of) the names that they initially even renamed the only char who has a non-Anglicised Hebrew name in Welsh/English. Ben was reverted to James in S6 onwards.

Also, Noman (Adam) has a child actor in S5 / 2005 series.

@TheIsraeliSudrian

Also, why is Elvis voiced by Gadi Levy in what season / series?

The late Efron Etkin quit the role after The Great Fire of Pontypandy (due to his complications), and Levy took over in S7 onwards.