Judith "Judy" Geller is the mother of Ross Geller and Monica Geller and wife to Jack Geller. She is cheerfully critical of Monica, particularly her usual lack of a boyfriend and how her ears are "not her best feature". Judy openly favors Ross, and makes fun of Monica for many reasons, one being that she will not find someone to get married to (The One With Ross's Wedding).
| Recurring Characters | |
|---|---|
| Whole show | Jack Geller | Judy Geller | Gunther | Janice |
| Season 1 | Barry Farber | Carol Willick | Susan Bunch | Mr. Heckles | Paolo | Fun Bobby | David | Nora Tyler Bing | Ursula Buffay | Mindy | Ben Geller |
| Season 2 | Julie | Mr. Treeger | Frank Buffay Jr. | Estelle Leonard | Richard Burke | Sandra Greene | Eddie Menuek | Leonard Greene |
| Season 3 | Mark Robinson | Sophie | Isaac | Chloe | Alice Knight | Pete Becker | Kate Miller | Joanna | Doug | Bonnie | Phoebe Abbott |
| Season 4 | Kathy | Mr. Waltham | Joshua Burgin | Emily Waltham | Stephen Waltham | Andrea Waltham |
| Season 5 | Frank Buffay Jr. Jr. | Leslie Buffay | Chandler Buffay | Danny | Charles Bing | Gary | Mr. Zelner | Kim |
| Season 6 | Janine Lecroix | Jill Greene | Paul Stevens | Elizabeth Stevens |
| Season 7 | Tag Jones |
| Season 8 | Mona | Dr. Long | Eric | Parker | Emma Geller-Greene |
| Season 9 | Mike Hannigan | Theodore Hannigan | Bitsy Hannigan | Amy Greene | Gavin Mitchell | Charlie Wheeler |
| Season 10 | Erica | Jack Bing | Erica Bing |