Lizzy Caplan and Husband Tom Riley: Marriage, Son Alfie, and Their Private Life

Lizzy Caplan and her husband, Tom Riley, keep their relationship unusually private for two working actors, which is exactly why people keep searching for the basics: who he is, when they got married, and whether they have kids. The clear answer is that Caplan is married to British actor and producer Tom Riley, they wed in 2017 in Italy, and they share a son, Alfie, born in 2021.

Who Is Lizzy Caplan?

Lizzy Caplan is an American actress known for blending sharp comedy with grounded drama, often in roles that feel intelligent, messy, and human at the same time. Many people first clocked her as Janis Ian in Mean Girls, a performance that became instantly quotable and still follows her career in the best way: it introduced her as someone who could be funny without being flimsy.

From there, she built a career that’s more varied than people expect. She’s done studio films and indie projects, but she’s especially strong on television, where she’s had room to play complicated characters over long arcs. She earned major acclaim for her work on Masters of Sex and has continued picking roles that lean into tension and intensity rather than pure glam. In recent years, she’s also led high-profile projects that keep her in the conversation without turning her personal life into a constant public storyline.

Who Is Lizzy Caplan’s Husband?

Lizzy Caplan’s husband is Tom Riley, an English actor and producer. If his face looks familiar but you can’t place it, it’s because he’s been the lead in major TV work while also taking a mix of supporting roles across film and television. One of his best-known roles is Leonardo da Vinci in the series Da Vinci’s Demons, which introduced him to a broader international audience and established him as a leading man with a very specific vibe: intense, intelligent, and slightly unpredictable on screen.

He’s also worked steadily across British and international productions, which is part of what makes the couple make sense. They’re both working actors, but they don’t treat the relationship as a “brand.” They show up for premieres when they need to, but they don’t run their marriage like a public marketing campaign.

How Did Lizzy Caplan and Tom Riley Meet?

They met in London in early 2015 while Caplan was there for work. This part of their story is often repeated because it explains why their relationship felt private from the start: it wasn’t built in the center of the Hollywood party circuit. It began while they were both working, in a setting where the relationship could develop quietly without a constant audience.

They kept things low-key early on, then gradually appeared together more publicly as the relationship became established. Even then, they never became one of those couples who posts everything, captions everything, and turns every milestone into content. Their public presence has always felt intentional and selective.

When Did Lizzy Caplan and Tom Riley Get Married?

Lizzy Caplan and Tom Riley married in September 2017. Their wedding took place in Italy on the Amalfi Coast area, a detail that stands out because it’s both romantic and consistent with how they operate: meaningful, but not loud. The wedding was reported publicly, but the couple didn’t treat it like an ongoing media event. It was a milestone, then they moved on with their lives.

That approach is a big reason people end up searching again later. When a celebrity shares only the headline facts, the internet fills the silence with questions. But in their case, the “silence” appears to be a choice, not a gap in the story.

Do Lizzy Caplan and Tom Riley Have Children?

Yes. Lizzy Caplan and Tom Riley have one child, a son named Alfie, born in 2021. They’ve kept parenting details relatively private, but the fact of becoming parents has been widely reported and has surfaced in interviews where Caplan has spoken about how much her priorities shifted once she had a child.

They’re also a good example of a modern celebrity parenting approach that’s becoming more common: share the existence of your child and the emotional reality of parenthood, but don’t provide constant access. In other words, you’ll hear that they have a son and that they’re happy, but you won’t get a minute-by-minute public diary of their family life.

Why Their Relationship Stays So Private

Some couples hide because they’re unstable. Others hide because they’re stable and don’t want outside noise. In Caplan and Riley’s case, their privacy comes across as boundary-setting rather than secrecy. They’re not trying to convince anyone they’re perfect. They’re simply not inviting the public into the parts of life that don’t require public participation.

That choice also protects the relationship from the usual celebrity cycle: rumors, “body language experts,” engagement speculation, breakup clickbait, and the endless assumption that a long-term partnership must be constantly proven to strangers. Their public appearances feel like support for each other’s work, not a plea for attention.

Tom Riley’s Career in Plain English

If you only know him as “Lizzy Caplan’s husband,” you’re missing the fact that he’s had a substantial career of his own. Riley trained as an actor in the U.K. and built a résumé that includes historical drama, thrillers, and character-driven TV. His breakout as Leonardo da Vinci gave him a signature role, but he’s continued to work steadily rather than chasing one kind of fame.

He’s also been involved behind the scenes as a producer, which fits the kind of career that lasts: not just waiting for roles, but helping make projects happen. That behind-the-scenes mentality also fits the couple’s overall tone—less about being seen, more about building a working life.