Dogmatix is a fictional character from the popular French comic series Asterix, created by René Goscinny and Albert Uderzo. He is a small, white dog and the loyal companion of Obelix, one of the main characters. Dogmatix is known for his love of nature and his strong dislike for anyone who harms trees. In the stories, Dogmatix often joins Asterix and Obelix on their adventures, providing comic relief and showcasing his cleverness. His character embodies themes of friendship and environmentalism, making him a beloved figure among fans of the series.