In 2004, Valance returned to acting, this time in the United States, appearing in episodes of the television series CSI: Miami and Entourage.
In 2005, she appeared in an episode of CSI: NY.
In 2005 Valance returned to music, albeit briefly, when she appeared on Har Mar Superstar's album The Handler singing on the tracks, "DUI", "Back the Camel Up" and "Body Request".
She appeared in Prison Break in 2006 as Nika Volek, a role which she continued to portray in the show's second season.
Also in 2006, Valance appeared in the National Lampoon comedy Pledge This!,
alongside American socialite Paris Hilton.
The same year, she starred in DOA: Dead or Alive, an adaptation of the popular video game Dead or Alive, in which she played Christie.
In 2007, she appeared in the TV series Shark and Moonlight.
In 2008 she had a role in the film Taken alongside Liam Neeson, and appeared in an episode of The CW series Valentine.

In 2009, she appeared in Frankmusik's video for his single "Confusion Girl".
She also leaked a track called "Superstar" in 2009.
In 2009 Valance played Brenda Snow for the video game Command & Conquer Red Alert 3: Uprising.
She also appeared in Scott Caan's film Mercy.
 Valance took part in the 2011 series of Strictly Come Dancing, where she was paired with the professional winner of series 8, Artem Chigvintsev.
Valance and Chigvintsev were eliminated in the semi-final of the competition on 11 December 2011, giving them a fourth-place finish.
She also starred in the Miss Marple television episode called "The Pale Horse".
In 2004, Valance returned to acting, this time in the United States, appearing in episodes of the television series CSI: Miami and Entourage. In 2005, she appeared in an episode of CSI: NY. In 2005 Valance returned to music, albeit briefly, when she appeared on Har Mar Superstar's album The Handler singing on the tracks, "DUI", "Back the Camel Up" and "Body Request". She appeared in Prison Break in 2006 as Nika Volek, a role which she continued to portray in the show's second season. Also in 2006, Valance appeared in the National Lampoon comedy Pledge This!, alongside American socialite Paris Hilton. The same year, she starred in DOA: Dead or Alive, an adaptation of the popular video game Dead or Alive, in which she played Christie. In 2007, she appeared in the TV series Shark and Moonlight. In 2008 she had a role in the film Taken alongside Liam Neeson, and appeared in an episode of The CW series Valentine.
In 2009, she appeared in Frankmusik's video for his single "Confusion Girl". She also leaked a track called "Superstar" in 2009. In 2009 Valance played Brenda Snow for the video game Command & Conquer Red Alert 3: Uprising. She also appeared in Scott Caan's film Mercy.  Valance took part in the 2011 series of Strictly Come Dancing, where she was paired with the professional winner of series 8, Artem Chigvintsev. Valance and Chigvintsev were eliminated in the semi-final of the competition on 11 December 2011, giving them a fourth-place finish. She also starred in the Miss Marple television episode called "The Pale Horse".
Holly Valance