Former Doctor Who star David Tennant is not known for being camera shy but did his best to keep his head down while filming in Watford on Friday.

The 41-year-old Scot was spotted outside Christ Church on St Albans Road filming scenes for his latest project – a three-part BBC drama series.

Tennant, wearing a dark suit and a white shirt, sat in an Audi saloon car before running for cover the moment filming was completed.

The drama, titled The Politician’s Husband, is expected to air on BBC 2 in 2013.