Grace gets a visit from her critical, over-the-top mother, a would-be star whose propensity for breaking out into show tunes and impersonations dismays her daughter -- and delights Will, Jack and Karen. She also wreaks havoc by suggesting Will and Grace wed, despite their sexual differences. When Will winces at the fantasy of committing to anyone who needs to be the star of a relationship, it's an eye-opener for Grace, who sees she's more of a chip off the old block than she imagined. Meanwhile, Karen thinks she might be pregnant so Jack helps her take a pregnancy test.

Eric McCormack (Will Truman)
Debra Messing (Grace Adler)
Sean Hayes (Jack McFarland)
Megan Mullally (Karen Walker)

Debbie Reynolds (Bobbi Adler)
Scott Kelly Galbreath (Waiter)

The title makes a reference to 1964's "The Unsinkable Molly Brown" starring Debbie Reynolds (she was nominated for an Academy Award for her performance).
Jack rents "Star Wars" (again) because he is collecting data for the Internet about C-3PO. (Jack: "The world should know the truth about C-3PO." Will: "Jack, C-3PO's not gay, he's British.") Debbie Reynolds is also Carrie "Princess Leia" Fisher's mother.
This episode was part of "NBC Proposal Tuesday" along with "3rd Rock from the Sun" and "Just Shoot Me."

Transcript of this Episode.

Episode Images:

02/09/1999 09:30 PM: 09.5/14% #33
04/15/1999 08:30 PM: 12.1/19% #07
07/20/1999 09:30 PM: 07.5/13% #27 — Tues 9:30 *Highest rated show of the evening