Well it is a difficult question - because most players play for different teams during their career(s). For sure you have Ernie Banks, Ferguson Jenkins, Ryne Sandberg, Billy Williams. Check this link to see who you think are the "real Cubs" http://entertainment.howstuffworks.com/Chicago-cubs-hall-of-fame-members.htm
As of October 2023, there are 14 players who have been inducted into the Baseball Hall of Fame while wearing a Chicago Cubs cap. Notable figures among them include Ernie Banks, Ryne Sandberg, and Ferguson Jenkins. The Cubs have a rich history, and these players are celebrated for their contributions to the team and the game.
No one from the team has made it to the hall of fame.
none
Three
18
5
FOUR
Z.e.r.o
There are 231 players, 8 umpires, 19 managers, and 31 pioneers and executives that have been elected to the Hall of Fame
Z.e.r.o
A lot
Currently 19 people are in the Hall of Fame with Cleveland Browns ties 18 players and 1 head coach.