Step 1 : Introduction to the question "What was the name of Dr. Ross Geller’s pet monkey on "Friends"?"
Although Joey Jr. might have been a more appropriate name for the monkey, his actual name was Marcel. Little Marcel was a big part of the first season of the hit show, and he made quite the impact with viewers. Marcel was actually a female capuchin monkey named Katie. Since Katie retired from her role on Friends nearly twenty years ago, she has done modeling, television and even worked as the mascot for The Angels of Anaheim baseball team. Maybe it's time Joey fired Estelle and hired Marcel's agent instead!