In the majority of his movies Vin Diesel plays tough, bullish characters with rock hard exteriors. The real Diesel, however, is a complete nerd.

A video has appeared on the internet, uploaded to Diesel’s Black Box Video YouTube channel, featuring the Fast and Furious actor declaring his love for the role-playing game Dungeons and Dragons.

“I just played a game of Dungeons and Dragons, and I haven’t played in so long, and I had so much fun,” he starts. Watch the video below and enjoy Diesel sharing his unfiltered happiness.

Diesel is known to be a huge D&D fan, having written the foreword to the commemorative book 30 Years of Adventure: A Celebration of Dungeons & Dragons. During the filming of xXx, he had a fake tattoo of his character’s name, Melkor, on his chest.