Nichols and director Taron Lexton wed Sunday at the Church of Scientology's Celebrity Centre in Los Angeles. During the ceremony, she wore a rhinestone-encrusted gown designed by Jenny Packham.
"I can't believe I get this man for the rest of my life," said Nichols, who played Nadia Yassir on the hit show. "We're so happy we can hardly stand it."
At the reception, guests dined on Mediterranean food, and lemon and coconut cake created by Rosebud. The newlyweds are spending their honeymoon in Las Vegas.
Nichols has also appeared on Cold Case, Blind Justice and CSI.