Dirk has a well-built body, black hair, large nose, black eyes and a handsome face. He wears gray armor with an orange overshirt, a helmet, sccabard and gray boots. He wields a sword.
A valiant knight of the kingdom, Dirk was entrusted with the rescue of Princess Daphne from the clutches of Mordroc and Singe because all other knights were killed. He is the highest ranking knight- a general. He is trustworthy, loyal, helpful, kind, brave and strong. He becomes heir to the throne upon saving Princess Daphne; following her rescue, Dirk and Daphne were married.
His abilities include walking, running, jumping, punching, kicking, headbutting and sword slashing.
For budget reasons, Dirk never speaks in the original Dragon's Lair, however his voice is heard when screaming, grunting and gasping; these were voiced by the game's film editor Dan Molina.
Dirk is voiced by Bob Sarlatte.
In his youth he was in the Squire Scouts and he earned an "Herpetology Badge". He mentions that he can joust on a camel blindfolded. He had soem adventures with Daphne, such as fighting the begelsum monsters together. It is mentioned he had another encounter with the Lizard King. A famous dragon-slayer, the Elder Dragon Singe seeks revenge for his children.
- Dirk was originally envisioned as a good-hearted, innocent but comically clumsy "everyman". Later incarnations that required a backstory, referred to him as the King's champion and a valiant dragon-slayer.
- The only times you see Dirk's hair in the original Dragons Lair is in the Phantom knight scene, and the ending. All the other times you see it is when he dies.
- Retro Gamer included him on their list of top 50 game characters in the category "Top Ten Forces of Good" and called him "without a doubt, the epitome of the heroic knight."