Uncredited Wilfrid Brambell?
I'd be surprised if it is .. but .. At the first demonstration, in the front row, one of the worthy gentlemen looks so like Wilfrid Brambell.
It is not in 'uncredited' on this film, and not in his own listing. Also, by 1958, whilt not a star, he was getting credited and named parts .. So I think I'm wrong .. but have a look, see if you agree it looks like him ..
few visible scars