Althea's husband (also known as Pop-Pop) was the father of Judy Geller, Lillian and Phylis as well as the maternal grandfather of Ross and Monica Geller.
Appearances
- "The One With The Sonogram At The End" (First mentioned)
- "The One Where Nana Dies Twice" (Mentioned only)
- "The One With The Princess Leia Fantasy" (Mentioned only)