Christina Pickles
Christina Pickles as the Geller matriarch is one of the series' best roles. She delivers harsh critiques to her beloved children that never seem to land quite as smoothly as she thinks. She got an Emmy nomination for her part in the Season 1 episode "The One Where Nana Dies Twice."
Tom Selleck
Tom Selleck played Monica's older, handsome boyfriend. He met Monica through her parents, with whom he was longtime friends. Obviously, this makes for some uncomfortable situations between the two worlds. Age is just a number, but that number was enough to keep these two apart...until Monica dates his son!