Sigrid is a supply ship who helps Owan work.
Sigrid's main job as a supply ship is to collect machine parts and bring them out to Owen the Oil Rig as he works out in the middle of the ocean. She is good friends with Emily and the other tugboats and has always wanted to be a tugboat herself. She once helped them dock a ship in a storm and was given a green bumper so that she could be a one of the Tugboats too.
- Sigrid's model, which was sold on ebay, is Oliver's model re-painted.