Speaking on his meteoric rise in 2016, Fisher-Harris said it was a collective effort from others that helped him get to this point.
"Everyone has actually helped this year to be honest in terms of my confidence. They all tell me to keep doing what I'm doing. Even the wingers," he said.
"There's not one person who hasn't helped me out. Everyone has really taken me under their wing and given me confidence."
Selection into the Kiwis' training squad should help dull the pain after being eliminated from the NRL playoffs.
Fisher-Harris put in a solid performance in the Panthers' 22-12 semifinal loss against the Canberra Raiders, but two high tackles in three minutes marred his efforts.
The first one gave Canberra the opportunity to relieve some pressure while the second one on halfback Aidan Sezer gave the NRL's leading scorer Jarrod Croker the opportunity to put the result beyond doubt.
Fisher-Harris will be joined by fellow Panthers Dallin Watene-Zelezniak, Suaia Matagi and Te Maire Martin.
After two previous false starts, DWZ finally made his Kiwis debut in May, while Matagi was part of the triumphant 2014 Four Nations campaign, coming off the bench against Samoa.
Like Fisher-Harris, five-eighth Martin also stepped up to first grade this season, but missed Penrith's run to the playoffs with a shoulder injury.
The final touring squad of 24 will be named during the week after the NRL Premiership Grand Final on October 2.
The Kiwis face Australia on October 15 and kick off their Four Nations title defence against hosts England on October 29.