
Cass Mapother is the sister of American actor and producer Tom Cruise. Cass’ brother Tom made his breakthrough with leading roles in the comedy film Risky Business (1983) and the action film Top Gun (1986). He has appeared in several legendary films. He has also been an outspoken advocate for the Church of Scientology, which he credits with helping him overcome dyslexia.
Cass Mapother: Bio Summary
Name | Cass Mapother |
Born | 1960s |
Famous as | sister of Tom Cruise |
Gender | Female |
Nationality | American |
Uncle | William Reibert Mapother, Sr. |
Parents | Mary Lee Pfeiffer and Thomas Cruise Mapother III |
Siblings | Marian Mapother, Lee Ann Mapother, Tom Cruise |
Occupation | Businesswoman |
Cass Mapother is suspected to have been born in the 1960s. Her actual date of birth is unknown. She might be in her 50s-60s but there isn’t a 100% assurance of that. She is the daughter of Thomas Cruise Mapother III (1934–1984) and Mary Lee (née Pfeiffer; 1936–2017). Cass Mapother’s father Thomas was an electrical engineer while her mother Mary was a special education teacher. Both parents of Cass were from Louisville, Kentucky, and had English, German, and Irish ancestry. Cass is not the only child her parents have.
Cass has three siblings who are Marian Mapother, Lee Ann Mapother, and Thomas Cruise Mapother IV (Tom Cruise). Among Cass’ siblings, Tom Cruise is the most popular one. Tom started acting in the early 1980s. Currently, he is one of the world’s highest-paid actors.
Tom’s films have grossed above $4 billion in North America and more than $11.5 billion worldwide, making him one of the highest-grossing box-office stars of all time. Cass Mapother and her siblings grew up in near poverty and had a Catholic upbringing.
Also Read: Mary Lee Pfeiffer: What Happened To Tom Cruise’s Mother?
The siblings spent part of their early days in Canada when their father got employed as a defense consultant with the Canadian Armed Forces. In late 1971, the family moved to Beacon Hill, Ottawa. Her parents Mary Lee Pfeiffer and Thomas Cruise Mapother III got separated for unknown reasons.
Cass’ mother left her father, taking Cass and her siblings with her to the United States. In 1978, Cass’ mother Mary Lee Pfeiffer married Jack South. However, Cass has stayed out of the public eye. She has kept her life private.
Cass Mapother is said to be a Scientologist and entrepreneur. She is the owner of Cass’s Cafe, per sources. Cass and most of her family are supporters of the Church of Scientology. Cass is believed to have her own family but there isn’t any verified information about them at the moment.

Cass Mapother Has Lost Both Parents
Unfortunately, both parents of Cass Mapother are no longer alive. Her biological father Thomas Cruise Mapother III died of cancer on 9 January 1984, at the age of 49, in Louisville, Jefferson County, Kentucky, USA.
Also Read: Thomas Cruise Mapother III: How Did Tom Cruise’s Father Die?
Cass’ mother Mary Lee Pfeiffer died peacefully in her sleep on 7 February 2017, in Los Angeles County, California, USA, at age 80. According to sources, Mary was cremated. Cass and her siblings attended their mom’s memorial along with other family and friends.
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