Rosalind Chao is an American actress, best known for playing Soon-Lee Klinger in the mid-1980s CBS show AfterMASH, Rose Hsu Jordan in the 1993 movie The Joy Luck Club, the recurring character Keiko O'Brien on Star Trek: The Next Generation and Star Trek: Deep Space Nine in the 1990s, and Dr. Kim on The O.C. in 2003. She also played Hua Li, Mulan's mother, in the live-action 2020 remake of Mulan.

Keiko O'Brien is a character in the fictional Star Trek universe, played by actress Rosalind Chao. Introduced in 1991, she is the civilian spouse of Starfleet crew member Miles O'Brien appearing occasionally in later seasons of the series Star Trek: The Next Generation (1987–1994), and more frequently as a supporting character throughout Star Trek: Deep Space Nine (1993–1999), as well as in related media such as novels. The producers wanted her as a regular character on Deep Space Nine, but Chao was only available part-time.