Bossy Byron is a cancelled episode of Jack and the Sodor Construction Company.
When Kelly is sent for repairs, Byron puts himself in charge and starts to boss all the other machines about. Eventually he learns that if he wants the others to take notice of him, he will have to ask them more nicely in the future. Byron is happy when Kelly returns after he realized that he was finding it hard to be nice.
- Working titles for this episode included "All Work, No Play" and "Seriously Folks".
- In the original draft of the script, Jack and the Pack were building a new playground and Byron was complaining about the rest of the vehicles having too much fun. Also, both Isobella and Kelly had dialogue in the original draft.
- The plot was going to be similar to that of Emily's Adventure.