He joins the previously announced Bryn Terfel and Emma Thompson, who also reprise their roles from New York.
Quast has also previously played the role of Judge Turpin in a production at the Royal Festival Hall in 2007 that also starred Terfel. Quast was last seen on the London stage in La Cage Aux Folles in 2009, reprising the role of Georges that he played when that production first opened at the Menier Chocolate Factory in 2007. He has won the Olivier Award for Best Actor in a Musical three times, for Sunday in the Park with George (National Theatre, 1991), The Fix (Donmar Warehouse, 1998) and South Pacific (National Theatre, 2002). Other London theatre credits include A Funny Thing Happened on the Way to the Forum and David Hare's Stuff Happens (National Theatre, 2004) and Juan Peron in Evita (West End, 2006).
In his native Australia, he starred as Javert in the original company of Les Misérables and subsequently played it in the West End, as well as at the 10th anniversary celebration at the Royal Albert Hall.
Further casting is still to be announced. To book tickets, contact the box office on 020 7845 9300 or visit www.eno.org.