Son of the late Sir Robert Stephens and Dame Maggie Smith
Stepson of Patricia Quinn.
Younger brother of Chris Larkin.
Attended the London Academy of Music and Dramatic Art.
In 1999, appeared on Broadway in "Ring Round the Moon".
Has the uncanny ability to master the American accent which, along with his smile and look, helped set him apart from the other actors reading for the part of Jay Gatsby and ultimately helped him land the role (a role he said he had the most fun playing and would do the part again in a heartbeat).
Was considered for the role of "Robin" in Batman Forever (1995).
Has turned down Hollywood many times; he concentrates mainly on theater.
After his parents' divorce when he was four years old, Stephens and his brother (actor Chris Larkin) grew up traveling back and forth across the Atlantic with their mother for her numerous acting engagements.
Older stepbrother of Quinn Hawkins.
Father to Eli Alistair (b. May 2007), Tallulah (b. May 2009) and Kura (b. September 2010), with wife Anna-Louise Plowman.
His family has been involved in three of Britain's most successful literary and film franchises. Toby played a James Bond villain in Die Another Day (2002), and later went on to play Bond himself on the radio. His father, Robert Stephens, played Aragorn from The Lord of the Rings on the radio. His mother, Maggie Smith, plays Professor McGonagall in the Harry Potter films.
He and his mother, Maggie Smith, have both worked with Ian McKellen. Smith appeared with him in Richard III (1995), while Stephens worked with him in a BBC Radio adaptation of "Goldfinger". McKellen also played "Smith" when he hosted Saturday Night Live (1975). In addition, both McKellen and Robert Stephens have appeared in adaptations of "The Lord of the Rings".
In 1992, he and Tara Fitzgerald co-starred in the television miniseries "The Camomile Lawn." In 1996, they again co-starred in the adaptation of Anne Brontë's The Tenant of Wildfell Hall (1996). Both appeared again in Charlotte Brontë's Jane Eyre (2006), but did not share screen time.
Performing in Harold Pinter's play "Betrayal" at the Donmar Warehouse, London as the character of "Jerry". [June 2007]
Playing "Horner" in William Wycherley's "The Country Wife" at Theatre Royal Haymarket in London. [October 2007]
Soon to play "Georges Danton" in Georg Buchner's "Danton's Death" at the National Theatre, London. 
Plays in 'Henrik Ibsen''s "Doll's House" in Donmar Warehouse Theatre until 18th July 2009 alongside 'Gillian Anderson', Tara Fitzgerald and Christopher Eccleston. [June 2009]
Performing as "Hamlet" in William Shakespeare's "Hamlet" with the Royal Shakespeare Company at Stratford upon Avon. [July 2004]
Playing "Henry" in Tom Stoppard's "The Real Thing" at The Old Vic, London. [April 2010]
Was delivered via Caesarean section due to being in the breech position.