His 1997 productions of Hamlet at the Barbican Theatre and Falstaff at the English National Opera have been nominated for several Olivier Awards including Best Director.

In September 2024 he will direct a revival of Seán O'Casey's Juno and the Paycock starring J. Smith-Cameron and Mark Rylance at the Gielgud Theatre in London's West End.

His second season at the Old Vic saw him direct the 20th anniversary revival of 'Art' starring Rufus Sewell, Tim Key and Paul Ritter from December 2016 to February 2017 (followed by UK tours in 2018 and 2019).

For the 2017 Christmas season, Warchus directed a new adaptation of Charles Dickens' A Christmas Carol by Jack Thorne starring Rhys Ifans as Scrooge which has since returned to The Old Vic every year due to its popular demand starring Stephen Tompkinson, Paterson Joseph, Stephen Mangan, Owen Teale and Christopher Eccleston as Scrooge.

In 2020, Warchus was planned to direct Amy Herzog’s 4000 Miles starring Eileen Atkins and Timothée Chalamet in April to May 2020, however due to the COVID-19 pandemic, the production has been postponed with the rescheduled dates to be announced.

In summer 2024, Warchus will direct The Constituent, a new political drama by Joe Penhall starring James Corden and Anna Maxwell Martin at the Old Vic.

In January 2025, Warchus will co-direct with Hofesh Shechter a new adaptation of Oedipus by Ella Hickson starring Rami Malek and Indira Varma at the Old Vic.

[11] In 1999, Warchus completed his debut feature film – an adaptation of Sam Shepard's play Simpatico – which he co-wrote and directed, starring Nick Nolte, Jeff Bridges, Albert Finney and Sharon Stone.

[13] Warchus is married to American actress Lauren Ward, who played the role of Miss Honey in the Stratford-upon-Avon, London, and Broadway productions of Matilda the Musical.