When Larchmont’s John Treacy Egan graduated from Westchester Community College in 1983, he earned the school’s first performing-arts degree.

In 25 years, he has been to Broadway and back. On Nov. 2 he wraps up his run as the madcap Chef Louis in Disney’s “The Little Mermaid.” (Photograph by Joan Marcus)

But at 7:30 p.m. Sunday, Egan will be back at the Academic Arts Theatre – which, he says, was brand-new when he arrived on campus in 1981 – for “Cabaret for a Cause,” a benefit to raise money for future performing-arts students.

Tickets are $60 general admission and include a dessert reception. For $100, you get a reserved seat and a copy of Egan’s new CD “Count the Stars,” a charming mix of Broadway standards and songs you might have heard at the Egan home in Larchmont when the actor’s dad – a lawyer who called himself “a saloon singer” – started singing.

At WCC, Egan will be joined by Scarsdale’s Steven Silverstein at the piano, Paul Ivory on bass and, on drums, Joe Brady, who teaches music at Mamaroneck High School.

Egan says he’s likely to sing a medley from “The Producers,” in which he played Max Bialystock, the director Roger de Bris and the Nazi playwright Franz Liebkind. (Should be quite a medley.)

At the Academic Arts Theatre, 75 Grasslands Road, Valhalla. 914-606-6558.

Other noteworthy events this week:

• Penguin Rep hosts a screening of “Hats Off,” a documentary about 93-year-old actress Mimi Weddell, at 2 p.m. Friday at the Performing Arts Center at SUNY Rockland Community College. After the screening, Weddell will be on hand to answer questions and, no doubt, to recite her favorite maxim: “90 is the new 40.” Tickets are $12. 845-786-2873.

• Play On Productions presents “You’re a Good Man, Charlie Brown” – with a cast of teachers and theatrical insiders – at Pelham Memorial High School this weekend. Directed by Neil Schleifer with musical direction by George Croom, the cast features: Mark Finegan (Pelham physical-education teacher) as Charlie Brown; Tom Beck (Pelham English teacher) as Snoopy; Joseph J. Egan (Pelham guest artist, set designer and Nyack High School’s director) as Linus; Katie Luekens Chan Chee (Pelham guest artist) as Lucy; Cindy Finegan as Sally; and George Croom as Schroeder. At 7 p.m. Friday and Saturday; 3 p.m. Sunday. $10 in advance; $12 at the door. At Pelham Memorial High School Auditorium, 640 Colonial Ave., Pelham. 914-740-7076.

• Infinity Repertory Theatre Company in Bedford Hills presents “Notes from a Hospital Bed” a staging of the creative-writing output by patients at the Maria Fareri Children’s Hospital at Westchester Medical Center in Valhalla – at 4 p.m. Sunday. Tickets are $75. Proceeds will support the Child Life and Creative Arts Therapy Department at the hospital. The performance will be preceded at 3 p.m. by a reception and silent auction. At The Pulse Performing Arts Studio’s Theater District, 196 Route 117 Bypass Road, Bedford Hills. Call 914-864-1880.