I've watched a few more than those on the list:
The 2013 Oz the great and Powerful (James Franco as the Wizard, a sort of prequel to the MGM movie)
ABCs Once Upon a Time ended up in Oz as well for a few episodes.
The muppets made a truly bad interpretation of the MGM movie. Now, I like the muppets, but the movies have been of varying quality, from Treasure Island and a Christmas Carol, which I love, to the Wiz of Oz which, as I already mentioned, is really, really bad.
But my favourite Oz is the one from 1925 with Oliver Hardy (of Laurel & Hardy fame) as the Tin Man.
Sidenote: A 1914 version also survives and is available on YT, but I haven't had time to sit down and watch that one yet.
As for the characters, Claire would be Dorothy, Marten as the Lion, Pintsize as the Tin Man, Tai as the Scarecrow (I almost chose Emily, but her problem is probably too much brain rather than the lack of one).