Katie Holmes' toddler daughter helped style her hair for a Broadway play.

The 30-year-old actress starred in the New York revival of Arthur Miller's 'All My Sons' last year, and used to bring Suri — her child with husband Tom Cruise, who turned three in April — to work with her.

She said: "Suri would sit in my lap in the make-up chair. She'd hand the wig lady the bobby pins."

Katie appeared in the play — about a man who made a fatal mistake during World War II — alongside John Lithgow, Dianne Wiest and Patrick Wilson. Katie has also spoken about her love of fashion, revealing she favours classic clothes to ultra-trendy pieces.

She explained to America's Elle magazine: "I love Alaia, for sure. Stella McCartney. I like Ralph Lauren because I feel like it's very American, and I'm pretty all-American, from Ohio. Isabel Marant and a new designer, Sari Gueron."

Katie's interest in fashion has already rubbed off on her daughter. It was recently reported Suri's wardrobe is worth R16 million, with Katie even splashing out on shoes by famed designer Christian Louboutin for the toddler.

A source said: "Katie and Tom really splurge on Suri, and as they're so famous they always get the top fashion designers to custom make her clothes. When Katie gets the Louboutins she always gets a few pairs so Suri can wear new shoes every time."