Alan Alda plays Eddie Hopper, the father of the bride who is trying to make his daughter's wedding perfect.
Molly Ringwald portrays Betsy Hopper, the bride who is excitedly preparing for her wedding.
Joe Pesci plays Oscar Henner, a quirky character involved in the family's wedding plans.
Catherine O'Hara takes on the role of Gloria Henner, who is linked to the main family in the story.
Ally Sheedy portrays Connie Hopper, a member of the family surrounding the wedding.
Samuel L. Jackson plays Taxi Dispatcher (Mickey), a character who interacts with the main cast during the events.
Madeline Kahn plays Lola Hopper, adding to the family dynamics within the film.
Anthony LaPaglia portrays Stevie Dee, contributing to the unfolding wedding story.
Joey Bishop plays Eddie's Father, representing the older generation in the family.
Burt Young takes on the role of Georgie, another character linked to the family.
Julie Bovasso portrays Grandma, adding a generational perspective to the wedding preparations.
Nicolas Coster plays Harry Lovell, another character involved in the wedding festivities.
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