Kathleen Yamachi: Pat Morita’s First Wife and Family

Kathleen Yamachi was the first wife of actor and comedian Pat Morita, best known for playing Mr. Miyagi in The Karate Kid. The couple married in 1953 and had a daughter, Erin Morita, in 1954. Their marriage ended in divorce, although biographical sources differ on the year. Kathleen’s own biography remains limited by the lack of reliable public records about her early life and later years.

The available evidence supports a focused account of her marriage and family connection. It does not establish her exact age, profession, birthplace, or what she did after the divorce.

Kathleen Yamachi: Quick Facts

Who Was Kathleen Yamachi?

Kathleen Yamachi is known primarily through her marriage to Pat Morita, the American actor and comedian who later became internationally recognized for his role as Mr. Miyagi in The Karate Kid.

Unlike Morita, Kathleen was not a prominent entertainment personality. The available biographical record does not establish a film or television career of her own, and there is little dependable information about her childhood, education, or family background.

That distinction matters when researching her biography. A connection to a famous actor does not automatically mean that every personal detail circulating online is accurate. Kathleen’s documented place in Morita’s life is clear, but much of the story beyond their marriage remains uncertain.

Kathleen Yamachi and Pat Morita’s Marriage

Kathleen Yamachi and Pat Morita married in 1953, several decades before Morita became widely known to television and movie audiences.

Morita was born Noriyuki Morita on June 28, 1932, in California. During his early adulthood, he worked outside the entertainment industry, including in computer data processing. His eventual decision to pursue comedy marked a major change in his career.

The couple’s marriage began during this earlier chapter of his life. It was not a relationship formed after his success in Happy Days or The Karate Kid. Kathleen was part of his family history before those roles made him a familiar face to audiences.

When Did Kathleen Yamachi and Pat Morita Divorce?

The marriage ended in divorce, but the exact year is not consistently reported.

EBSCO’s biography of Pat Morita places the divorce in 1967. IMDb, however, lists Kathleen as his wife from June 13, 1953, through 1970. Other biographical references commonly use 1967.

Without an authoritative divorce record that resolves the discrepancy, 1967 is the date supported by EBSCO’s biographical account, while 1970 should be acknowledged as a date appearing in another database.

The sources reviewed do not establish the precise circumstances of the divorce or provide a detailed account from Kathleen herself. It would therefore be misleading to present a particular disagreement, financial problem, or career decision as the confirmed cause of their separation.

The sources reviewed do not establish the precise circumstances of the divorce or provide a detailed account from Kathleen herself. It would therefore be misleading to present a particular disagreement, financial problem, or career decision as the confirmed cause of their separation.

Did Kathleen Yamachi and Pat Morita Have Children?

Kathleen Yamachi and Pat Morita had one documented child together, a daughter named Erin Morita, born in 1954.

Erin was born during the early years of her father’s first marriage, well before Morita became widely recognized for his television and film work. She is sometimes mentioned alongside Morita’s other daughters, Aly and Tia, but the family relationships are different.

Aly and Tia were born during Morita’s second marriage to Yukiye Kitahara, which began in 1970. Erin is Kathleen’s daughter.

The public record supports this basic family relationship. It does not provide a comprehensive account of Erin’s private life, and there is no need to add personal details that do not help explain Kathleen’s biography.

Pat Morita’s Life Before Hollywood Fame

Kathleen’s connection to Pat Morita belongs to a period when his career looked very different from the one audiences would later recognize.

Morita worked in computer data processing before pursuing comedy. His move into entertainment eventually led to television appearances and film roles, including Thoroughly Modern Millie in 1967.

His later performances as Arnold on Happy Days and Mr. Miyagi in The Karate Kid made him a familiar figure in American entertainment. The latter role earned him an Academy Award nomination for Best Supporting Actor.

That career history explains why readers search for Kathleen today: she was part of Morita’s family life before his best-known performances. However, the timeline alone does not establish how Kathleen viewed his career, what she contributed to his decisions, or why their marriage ended.

What Happened to Kathleen Yamachi After the Divorce?

Reliable public information about Kathleen Yamachi’s later life is limited.

The sources reviewed do not establish where she lived after the divorce, whether she remarried, what profession she pursued, or whether she remained in contact with Morita. Those details should not be filled in with guesses simply because readers are curious about them.

Some celebrity biography websites publish exact ages, occupations, or personal histories for Kathleen without identifying dependable original sources. Such claims should be treated cautiously, even when similar information appears on more than one website.

The most accurate conclusion is that Kathleen’s documented public biography largely concerns her marriage to Pat Morita and their daughter Erin. Beyond that, the available record is incomplete.

Frequently Asked Questions About Kathleen Yamachi

Who was Kathleen Yamachi?

Kathleen Yamachi was the first wife of actor and comedian Pat Morita. They married in 1953 and had a daughter, Erin Morita, in 1954. Kathleen is known primarily through this family connection, while reliable information about her independent career and later life remains limited.

When did Kathleen Yamachi marry Pat Morita?

Kathleen Yamachi and Pat Morita married in 1953. IMDb lists June 13, 1953, as the wedding date, although EBSCO’s biography supports the year rather than establishing that exact date.

Did Kathleen Yamachi and Pat Morita have children?

Yes. They had a daughter named Erin Morita, born in 1954. Pat Morita later had two daughters, Aly and Tia, with his second wife, Yukiye Kitahara.

When did Kathleen Yamachi and Pat Morita divorce?

EBSCO dates their divorce to 1967, while IMDb lists 1970 as the end of their marriage. The difference has not been resolved by an authoritative divorce record identified in the sources reviewed.

What happened to Kathleen Yamachi after her divorce?

Her later life is not well documented in reliable public sources. Her occupation, current location, subsequent relationships, and exact age have not been established here, so claims about those details should not be treated as confirmed facts.

Conclusion

Kathleen Yamachi was part of Pat Morita’s life before he became widely known for Happy Days and The Karate Kid. Their 1953 marriage and daughter Erin are the clearest documented parts of her public biography.

The divorce year remains disputed across biographical sources, and reliable information about Kathleen’s later life is limited. A responsible account should preserve those distinctions rather than turn missing information into a dramatic story.

For readers interested in other celebrity family biographies, TrendVica covers public figures and their documented family histories.