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Rabbi Philip Berg founded the Kabbalah Centre in Los Angeles more than 40 years ago. The center announced he died aged 86 this week.
Kutcher and Kunis were dressed in white, like the other mourners, a symbolic Kabbalah color.
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Both starred on the U.S. sitcom "That 70's Show."
Fashion designer Donna Karan also attended the funeral, which was held Wednesday in Safed, the spiritual center for Kabbalah, and the home of the Jewish mystics who defined it six hundred years ago.
Though Kabbalah is rooted in Judaism, its message has in recent years become popular to people of all beliefs.
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