Name some characters from the TV show "Friends"?

The main characters on the TV show "Friends" are Rachel Green, Ross Geller, Monica Geller, Chandler Bing, Joey Tribiani, and Phoebe Buffay. Secondary characters include Gunther,  manager of Central Perk, Richard, Monica's ex-boyfriend, and Janice, Chandler's ex-girlfriend. There are two main children on the show, Emma and Ben. Ross is the father of both children. Rachel is Emma's mother. Carol is Ben's mother. Carol was in a relationship with Ross but later married Susan. Additionally, Phoebe Buffay was a surrogate for her brother who has triplets.