Debbie[Talia Balsam/Robin Bartlett] Paul's sister, possibly a younger sibling, who has 2 sons, Jed and Noah.

She is not mentioned by Sylvia when discussing Paul's birth: "Sharon was 2...", and so was probably born after Paul.

Debbie separated from her husband Gary on the eve of Paul and Jamie's wedding, after 15 years together, so it would appear to have been a high school romance. 4 years later she found romance with Joan while on a trip to Vermont and they've moved in together.

Debbie takes great exception to Paul and Jamie not selecting Joan as their ob/gyn, which they ultimately do.

Jed [Bradley Pierce] Debbie's older son, who spent a Halloween with Paul and Jamie. Jamie took him trick-or-treating in an Aladdin costume she improvised, with Murray in tow as a camel. Jed holds the distinction of being the best-behaved kid on MAY, even making Jamie wish for a child.

Noah[Andrew J. Ferchland] Debbie's younger son, whose noisy behaviour at his mother's lunch celebrating Paul and Jamie's second anniversary makes a deep impression on Jamie. His mother copes with the tantrums by using a trip to Disney World as the stick.