Isabelino Gradin of Uruguay (according to wiki, I have not made researches to confirm that/ link to source in the article is dead).
Derek Dougan (international Northern Irish forward of the late-1950s to mid-1970s who played for Portsmouth FC, Blackburn Rovers, Aston Villa, Peterborough, Leicester and Wolverhampton).
Roy Vernon (Welsh international center forward who played from the mid-1950s to the late-1960s for Blackburn, Everton and Stoke).
Tarek Dhiab, number 10 of Esperence de Tunis and of Tunisia (1978-1989, World Cup '78). Tarek or Tarak.
Just a postscript on this: I watched some more footage on Liedholm the other night (a sort of highlights package from his Milan days) and, while he was two-footed enough to make it difficult to say for quite a while, he then took a penalty with his left foot - again, not a perfect guide but a very strong indication.
let's also make a mention of the 'honorary left footers' i.e.right footers who made a great left foot contribution to the sport.I mean right foot players who could dribble,make a pass,assist and even score with their left[weak foot].
Vermelhinho (Portuguese international winger who played for Porto among other clubs during the 1980s and 90s).
A genuine two- footers thread would be VERY interesting . Can't think of too many off the top of my head tbh.. Best ever two footed player I've seen is Glen Hoddle although he's pretty much best at most things ( tackling and heading discounted ) .
Rafael Gordillo Spanish international midfielder and winger of the mid-70s to mid-90s who played for Betis Sevilla and Real Madrid.
Yes, probably it can be Gordillo also played more as a left-back but I should maybe add a "don't quote me on that" as I haven't looked into it in detail! When I think of all-time players I think of him more among the left-back options, but I suppose it's a harder task to be considered among the best left wingers anyway and in that role I don't think he was so much all-time material although still effective. He was an attacking left back for sure when he played there, so I completely see the Marcelo comparisons. Real Madrid sometimes/often played Camacho behind Gordillo I'm thinking, hence the left-back being an outright defender when that happened (despite in general not exactly a defensive approach in those teams).
Already mentioned along with Reynald Pedros, Franky Vercauteren (who was already mentioned since post #1 by you) and Joël Bossis. post #397, p. 16. Kohut was already mentioned too (by me).
Josef 'Jupp' Derwall German international inside forward of the late-1940s to early-1960s who played mainly for Alemannia Aachen and Fortuna Düsseldorf. Jesus Garay Spanish international centre half of the 1950s and 60s who played for Athletic Bilbao, Barcelona and Malaga. Enrique Collar Spanish international outside left of the 1950s and 60s who played for mostly for Atletico Madrid.