Paul Reiser Onstage

Some people need no introduction, and Paul Reiser is one of them. The actor, comedian, and writer will bring his stand-up comedy to Bay Street Theater in Sag Harbor on Monday evening at 8.

For those who have been living in another galaxy for the past 25 years, Mr. Reiser is perhaps best known as co-creator and star of “Mad About You,” the comedy that ran on NBC for seven seasons. However, his extensive film career has included roles in such recent, high-profile pictures as “Whiplash,” “Concussion,” and “The Darkness.” He also played opposite Michael Douglas and Matt Damon in Steven Soderbergh’s Liberace biopic for HBO, “Behind the Candelabra,” and made his theatrical debut in Woody Allen’s “Writer’s Block.”

Mr. Reiser’s national comedy tour highlights the humor in love, life, and relationships. Tickets to the Bay Street show range from $75 to $125 and are likely to sell out in advance.

Bay Street’s 25th Annual Summer Gala will light up Long Wharf on Saturday, starting at 5:30 p.m. with cocktails and continuing with an awards presentation and performances in the theater from 6 to 7:30 and more cocktails, dinner, and a silent auction from 7:30 on.

Special appearances will be made by Richard Kind, B.D. Wong, Jason Alexander, Alec Baldwin, Josh Grisetti, and Harris Yulin. Tickets are priced at $425 for young professionals, from $1,250 for everyone else.