Bayard plays a somewhat minor part in the film. He is first seen at the Red Queen's castle being held back by the guards as he is told by The Knave of Hearts to find the scent of a human girl and that if he did so, his wife and pups along with everyone else would go free; although this was a lie Bayard failed to look past, for he agreed and followed Alice's scent to The Mad Hatter's, The March Hare, and The Dormouse's tea party. Scenting Alice in the teapot Hatter has hidden her in, Bayard growls at the Hatter, who tells him, 'Down with Bloody Big Head'. At this, Bayard turns away and leads the Knave of Hearts in a different direction.
Bayard is later on seen with Alice and taking her to the Red Queen's castle and then back later on as he follows Alice, who is then riding the Bandersnatch, back to the White Queen's castle. Then, Bayard is briefly seen looking through a telescope and at his returning wife, Bielle and their four pups. At the end of the film during the battle, he is seen with the Dormouse on his back as they are cornered by The Jub Jub Bird, whose head is soon crushed by a falling boulder and Bayard and the Dormouse manage to escape.