Jack Geller is the father of Ross Geller and Monica Geller and husband to Judy Geller.
Appearances
Friends
Guest cast, played by Elliott Gould
- Episode 1x02: The One With the Sonogram at the End (Sep 29, 1994)
- Episode 1x08: The One Where Nana Dies Twice (Nov 10, 1994)
- Episode 1x17: The One With Two Parts, Part 2 (Feb 23, 1995)
- Episode 2x14: The One With the Prom Video (Feb 1, 1996)
- Episode 2x16: The One Where Joey Moves Out (Feb 15, 1996)
- Episode 3x01: The One With the Princess Leia Fantasy (Sep 16, 1996)
- Episode 4x24: The One With Ross's Wedding: Part II (May 7, 1998)
- Episode 5x01: The One After Ross Says Rachel (Sep 24, 1998)
- Episode 5x08: The One With All the Thanksgivings (Nov 19, 1998)
- Episode 6x09: The One Where Ross Got High (Nov 25, 1999)
- Episode 7x02: The One With Rachel's Book (Oct 12, 2000)
- Episode 7x03: The One With Phoebe's Cookies (Oct 19, 2000)
- Episode 7x13: The One Where Rosita Dies (Feb 1, 2001)
- Episode 7x14: The One Where They All Turn Thirty (Feb 8, 2001)
- Episode 7x23: The One with Monica and Chandler's Wedding, Part 1 (May 17, 2001)
- Episode 7x24: The One with Monica and Chandler's Wedding, Part 2 (May 17, 2001)
- Episode 8x01: The One After "I Do" (Sep 27, 2001)
- Episode 8x18: The One in Massapequa (Mar 28, 2002)
- Episode 9x01: The One Where No One Proposes (Sep 26, 2002)
- Episode 10x04: The One With the Cake (Oct 23, 2003)