Other characteristics are his simplemindedness, his love and care for his dog Dogmatix, his anger when someone refers to him as being "fat", his enthusiasm for hunting and eating wild boars, and beating up Romans.

His passions in life are hanging around with Asterix, fighting, hunting and eating wild boar, making and carrying his menhirs, and beating up Roman legionaries (and occasionally collecting their helmets as trophies).

In fact, he eats nuts and oysters in the shell, and is completely oblivious to drugs, spicy food and poison, possibly due to the permanent effects of the magic potion.

It is hinted that they are also just oversized knick-knacks; however they are probably a running-gag regarding the origins of the mystery surrounding Menhirs in ancient Europe, with the joke being that Obelix delivered them.

He also has little interest in subjects of formal education or intellectual pursuits, since sheer strength usually solves his problems; he generally leaves any decisions to Asterix.

In Asterix and the Normans he deduces from various clues that Cacofonix the bard has gone to Lutetia to pursue a career in popular music: this unusual display of intelligence on Obelix's part surprises Getafix.

He harbours a hopeless crush on Panacea, the daughter of Soporifix (one of the other villagers), and occasionally other young women, most notably Mrs. Geriatrix (which enrages her husband).

However, one may think that he will eventually find a mate and have children since in Asterix and the Class Act, he is shown to be the founder of a long dynasty of French warriors that lasted well into the 20th century.

This appears to only work on grown people as Obelix did not turn to stone as a baby, or may simply occur after drinking an excessive amount while still under the effects of a previous dose).

However, in Asterix and Cleopatra, Getafix gives him a few drops to open a door in the Great Pyramid's Labyrinth but he comments that he does not see much difference between "before and after the potion" though this is presumably because Obelix is used to accomplishing any physical task with ease.

In the English dubs of the animated films, he has been voiced by Hal Brav, Michael Kilgarriff, Billy Kearns, Bernard Bresslaw, Rosey Grier, Howard Lew Lewis, Brad Garrett, C. Ernst Harth, and Nick Frost.

The English dubs for these films have featured Obelix's voice being provided by Terry Jones, Dominic Fumusa, and Paul Bandey.