Tilly is Gumby's chicken and the only farm animal at Gumby's Farm and Studio. She is a main character and many episodes revolve around her like "Fox Hunt", "Chicken Feed", and "All Cooped Up" She made a cameo in Gumby: The Movie
Tilly first appeared in the episode "Chicken Feed". She appeared as a slender, orange chicken. When Gumby can't find her regular chicken food at the store, he buys her radiated chicken feed which makes her grow to an enormous height.
Tilly is a kind, clever chicken that is Denali's best friend. She used to be slender and orange in the 60's. Currently, she is gray and rounded with real textured feathers. On rare occasions she plays the chimes in Gumby's band.