any of her iconic role in films you may know of?
"Frost/Nixon", "The Damned United", and others.
Michael Sheen
Sheen has become better known as a screen actor since the 2000s, in particular through his roles in various biographical films. With writer Peter Morgan, he has starred in a trilogy of films as British politician Tony Blair: the television film "The Deal" in 2003, followed by "The Queen" (2006) and "The Special Relationship" (2010). For playing Blair, he was nominated for both a BAFTA Award and an Emmy. He was also nominated for a BAFTA as the troubled comic actor Kenneth Williams in BBC Four's 2006 "", and was nominated for a fourth Olivier Award in 2006 for portraying the broadcaster David Frost in "Frost/Nixon", a role he revisited in the 2008 film adaptation of the play. He also starred as the controversial football manager Brian Clough in "The Damned United" (2009).

who played tony blair in the film the queen Michael Christopher Sheen . who is this person? An actor and a political activist. has he worked on stage as well? Yes, in plays like "Romeo and Juliet", "Don't Fool With Love", "Peer Gynt", "The Seagull" and others.
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Michael Sheen [SEP] Introduction
Michael Christopher Sheen (born 5 February 1969) is a Welsh actor and political activist. After training at London's Royal Academy of Dramatic Art (RADA), he worked mainly in theatre throughout the 1990s and made notable stage appearances in "Romeo and Juliet" (1992), "Don't Fool With Love" (1993), "Peer Gynt" (1994), "The Seagull" (1995), "The Homecoming" (1997), and "Henry V" (1997). His performances in "Amadeus" at the Old Vic and "Look Back in Anger" at the National Theatre were nominated for Olivier Awards in 1998 and 1999, respectively. In 2003, he was nominated for a third Olivier Award for his performance in "Caligula" at the Donmar Warehouse.