Tristan Sturrock, who plays Danny, the Doc (Martin Clunes)'s rival for Louisa (Caroline Catz)'s affections, also appeared all three of the other productions featuring "Doc Martin" (Saving Grace (2000), Doc Martin (2001) & Doc Martin and the Legend of the Cloutie (2003)) as "Harvey".
The information on the side of Bert's truck reads "Large & Son, 01632-960-008".