Josh Hartnett and Tamsin Egerton Expecting First Child

07/03/2015 at 10:45 AM ET

Josh Hartnett and Tamsin Egerton Expecting First Child
Michael Kovac/Getty

Josh Hartnett is getting ready for his biggest role yet — dad!

The Black Hawk Down star and his British girlfriend, actress and model Tamsin Egerton, are expecting their first child, his rep confirms to PEOPLE.

The actors are said to have met on the set of The Lovers in 2011 and have been together almost four years.

Hartnett’s rep told the New York Post‘s Page Six that the couple is “beyond thrilled.”

Hartnett, 36, currently stars on Showtime’s Penny Dreadful, and Egerton, 26, is filming Sacha Baron Cohen‘s Grimsby with Rebel Wilson and Isla Fisher.

No word yet on when the baby is due.

— Maria Coder with reporting by Julie Jordan

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Christina on

*waits for the typical “OMG, why aren’t they married?!” comments*

Christina on

Oh and congratulations to them.

Carli on

I had the biggest crush on him in middle school! Love him in Penny Dreadful! Congratulations to the couple!

Angie on

If this is true, i am heartbroken!

Angie on

He too old for her!! It sad news!!