Panda

Panda was a 10 inch tall sentient, stuffed toy Panda who travelled with Iris Wildthyme.

Biography
Panda originally belonged to Tom, at a time when Tom was writing about his travels with Iris Wildthyme. After Iris returned to Earth, Panda and Tom joined Iris in her travels around the multiverse. (BFIW: Wildthyme at Large)

After Tom returned to Earth to live his life as a journalist, Panda still continued to travel with Iris. (BFIW: The Sound of Fear)

Panda sacrificed himself to save the multiverse from being invaded by his alternate selves by jumping into a rift while holding a bottle of whisky. (BFIW: The Panda Invasion) Panda did not die as he expected and was later saved by Iris Wildthyme and Santa. (BFIW: The Claws of Santa)

Personality
Panda was, at most times, bad tempered. He took offense at being called a toy. Panda always carried a hip flask containing whisky with him as he felt that it kept him safe through dark times. (BFIW: The Two Irises)