The dancing rabbis are whirling around the stage of the Chabad "To Life" Telethon, unmistakably Hasidic in their thick beards and black coats.
But who's the tall dancer with the clean shave and long blond hair?
Jon Voight of "Midnight Cowboy." Angelina Jolie's father. Lifelong Catholic.
And yet here he is year after year, dancing with the rabbis in a Hollywood television studio, a black yarmulke on his head.
The 69-year-old actor is virtually synonymous with the telethon -- a hero to his hosts, a curiosity to some viewers. But no other big-name guest -- not Adam Sandler, Bob Dylan or Magic Johnson, to name a few -- has matched his sheer enthusiasm for Chabad or his close relationship with its West Coast director, Rabbi Boruch Shlomo Cunin.
"A real super mensch," Cunin, 67, calls him.
Voight has celebrated Hanukkah with Cunin. He attends Yom Kippur services at the synagogue of another longtime rabbi friend and speaks lovingly about "the holy Torah."
He has studied the works of Chabad's venerated Lubavitcher "Rebbe," the late Rabbi Menachem Mendel Schneerson. He can tick off the names of revered Talmudic scholars -- Maimonides and the Maharal, for instance -- the way others throw out the names of famous baseball players.
And every September, he returns to join the dancing rabbis. This Sunday he'll make his 18th telethon appearance.
All of which raises the question: Why?
"The relationship I have with the Cunins is very deep," said Voight, who has gotten to know the rabbi's large extended family. "Any time you can put together people from different cultures, it gives us great heart."
Voight says he is smitten by the ideal of performing mitzvahs, good deeds, and the Jewish tradition of scholarship, calling Jews "the conscience of the world."
He also says he feels energized by Chabad's charity work and by Cunin, a fellow New Yorker who arrived in California more than 40 years ago and established a mini-empire of Hasidic life that now includes more than 200 Jewish community centers, dozens of schools, camps and a residential drug treatment center that serves Jews and non-Jews alike.
"How could I not be at their side when they ask for help, not for themselves, but for the poor, the meek, the unfortunate," Voight said at one telethon. "So please give generously to Chabad. They are the light and hope for all."
That message -- repeated by a parade of celebrities over the years -- has been a boon to Chabad's bottom line.
The telethon raised more than $7 million last year to support what Chabad calls the largest network of educational and nonsectarian social services under Jewish auspices on the West Coast.
Cunin launched the event in 1980 after a fire destroyed Chabad's West Coast headquarters in Westwood, killing three young men. The actor Carroll O'Connor was its first celebrity host, along with the late comedian Jan Murray. They embraced what was then a little-known group of Hasidim, an ultra-orthodox wing of Judaism that follows strict religious codes but believes in reaching out to less religious Jews.
Voight has been the most consistent face for 18 of the telethon's 28 years, sometimes sending video greetings when he's filming overseas. Longtime viewers have watched his long blond hair give way to silver-gray. On every occasion, he has worn a yarmulke. And more than once, he has donned a black fedora.