The previous character trailer for The King of Fighters XV revealed Leona Heidern, who makes up one third of Team Ikari Warriors.
Representing classics starting with the Ikari Warriors games, this duo has been kicking around with SNK for decades, and also appeared in some of the Metal Slug games.
Ralf is voiced by Bunshu Shinoya and and Clark is voiced by Tomo Kasaya.
KOF XV|RALF JONES & CLARK STILL|Trailer #19 #20【TEAM IKARI】