This is the right post, for all the curious (or bi-curious) Max Showalter fans out there: What's Up With Max Showalter? (2/18/2011).
He really was a fine character actor, playing sad clowns especially well (see peculiar YouTube post below) and you've probably seen him in at least three things if you've ever caught a Late Late Show or watched television with any regularity between 1954 and 1983.
Let's see, including this next one, I've mentioned Max Showalter 11 times. Take that, number one Google search return.
suspect that was my sister.