Mark Robertson is an episode writer for Thomas and Friends. He has also provided scripts for many other television programmes like "Dennis & Gnasher", "Bear Behaving Badly", and "Pet Squad".

Episodes

Season 12

• Thomas and the Billboard
• Thomas Puts the Brakes On
• Duncan and the Hot Air Balloon

Season 13

• The Lion of Sodor
• Slippy Sodor

Season 14

• James in the Dark
• Pop Goes Thomas

External Link

• Official Website