Christopher Castile Wife: Who Is He Married To? (2026)

Christopher Castile, the former child actor known for playing Mark Foster on Step by Step and Ted Newton in the Beethoven films, is married to Alison Castile. The couple met in public high school after Step by Step ended and have been married since 2002.

Who Is Alison Castile?

Alison Castile is the wife of Christopher Castile and, according to multiple biographical sources, his high school sweetheart. The two met when Castile returned to public school after Step by Step was cancelled in 1998. Unlike her husband, Alison is not a public figure and no public information is available about her own career or professional life. The couple has kept their relationship largely private, with Castile only occasionally sharing glimpses of his family life on social media platforms such as Twitter and LinkedIn. Castile's IMDb profile confirms the marriage, listing him as "married to Alison Castile."

Marriage Timeline

Christopher and Alison Castile met as teenagers in a Southern California public high school after Castile stepped away from acting in 1998. They married in 2002, according to reports from DoYouRemember and Ned Hardy, giving the couple more than two decades of marriage as of 2026. Their wedding followed Castile's transition from Hollywood child star to college student — he attended California State University, Long Beach, and later wrote the autobiographical young adult book Being You is Most Definitely Cool (1996) about his experiences in Hollywood, bullying, and his faith.

Children

Christopher and Alison Castile have two children: a daughter and a son. Details about their children's names and dates of birth are not publicly available, as the couple has chosen to raise their family away from the spotlight. Sources describe Castile as having settled into a private life centered on family, with his past as an actor described as "a curiosity compared to his calling as a father and educator." Castile has also obtained a pilot's license and remains involved in community activities alongside his teaching work.

Career Highlights

Born Christopher Jon Castile on June 15, 1980, in Orange County, California, Castile began acting at age seven in commercials. His breakthrough came as Ted Newton in Beethoven (1992) and Beethoven's 2nd (1993), followed by his best-known role as the intelligent and kind-hearted Mark Foster on Step by Step (1991–1998), appearing in 160 episodes. He also voiced Eugene Horowitz on Hey Arnold! (8 episodes, 1996–1997) and Nick Mulligan on Adventures in Odyssey (2001–2005), and guest-starred on Are You Afraid of the Dark? (1995) and Empty Nest.

After retiring from acting in 1998 — saying he felt unfulfilled by it — Castile built a second career in education. He teaches U.S. history at Downey High School and serves as an adjunct professor of political science at Biola University in La Mirada, California. His students rate him highly: he carries a 4.3 out of 5 rating on Rate My Professor, with reviewers describing his classes as fun. Biographical sources estimate his net worth at around $1 million, reflecting earnings from his child-acting years combined with his long-term teaching career.

For more on his finances, see our Christopher Castile net worth breakdown, and for his most famous co-star connection, read about the Staci Keanan husband story — Keanan played his older sister Dana Foster on Step by Step.

FAQ

Who is Christopher Castile's wife?

Christopher Castile's wife is Alison Castile, his high school sweetheart. They met in public school after Step by Step ended and married in 2002.

How many children does Christopher Castile have?

Christopher Castile has two children, a daughter and a son. Their names and birth dates have not been made public.

What does Christopher Castile do now?

Castile teaches U.S. history at Downey High School and is an adjunct professor of political science at Biola University in La Mirada, California. He retired from acting in 1998.

What was Christopher Castile's biggest acting role?

His best-known role was Mark Foster on the ABC/CBS sitcom Step by Step (1991–1998), in which he appeared in 160 episodes. He also played Ted Newton in Beethoven (1992) and Beethoven's 2nd (1993).