Korea Republic
South Korea has qualified for every World Cup since 1986—the longest active streak for any Asian nation—with their historic peak coming in 2002 when they co-hosted the tournament and reached the semi-finals.
South Africa South Africa has qualified for three World Cups, making history in 2010 as the first African nation to host the tournament, where Bafana Bafana memorably defeated France despite a narrow group-stage exit.
Mexico
Mexico has appeared in nearly every World Cup since the inaugural 1930 tournament, famously reaching the quarter-finals twice as hosts in 1970 and 1986.