Clementine is a big container ship who came when Theodore was having trouble being on time. At first, she was angry with the tugboats for being late, but would soon become good friends with them. Clementine can also be very assertive when it comes to delivering containers and sometimes gets upset if anything ever happens to them.
- Her hull was previously used for Annapolis, and was later used for Chester.
- Clementine is the last ship to use the same structure, which was used for Jennifer, Julia, Henry Eben, Catherine, Caroquette, and Gloria Cornwallis.
- Season 4 - Theodore On Time, The Dispatcher's Best Birthday and Emily's Bruised Bumper (cameo)
- Season 5 - Theodore and the Harbour Crane, Theodore And The Runaway Ferry (cameo)