As a new KBO League team in 2015, the Wiz were allowed four foreign players on their roster each season (as opposed to the usual three).

[3] Foreign players signed by the Wiz for the 2015 season were pitchers Phil Irwin, Andrew Sisco and Chris Oxspring, and hitter Andy Marte (Sisco and Irwin were both released mid-season and replaced by Dan Black and Justin Germano, respectively).

Beginning in the 2017 season, the Wiz's allowed allotment of foreign players reverted to three to match the rest of the league.

[4] The following year, for the first time in franchise history, KT Wiz became regular season champions after defeating the Samsung Lions in an additional tiebreaker and advanced directly to the Korean Series.

[5] In the final, they won their first Korean Series title, sweeping the Doosan Bears in four games.