Billy is a young glyptodont shown in Ice Age: The Meltdown at Sid's camp joining James in picking on Sid, pulling on a vine with his mouth to hold Sid up and use him as a piñata. As Sid told his friends that the young animals at the camp were fond of him, he asked Billy if he agreed, but Billy just mocked him by saying "Don't make me eat you." Billy was also shown during the migration, panicking among other animals when they realized the dam had burst.
|Ice Age (2002) • The Meltdown (2006) • Dawn of the Dinosaurs (2009) • Epilogue (2002) • Ice Age: Continental Drift (2012) • The Land Before Time/Ice Age crossover (2015)|
|The Land Before Time XIV (2010)|
|Manny • Ellie • Scratte • Buck • Peaches • Scrat • Sid • Diego • Crash and Eddie • Sylvia • Rudy • Momma • Shelly • Lone Gunslinger • Fast Tony • Jennifer and Rachel • Mini-Sloth • Roger • Ruby • Flightless Bird • Others|
|Ice Age • The Meltdown • Dawn of the Dinosaurs • Ice Age 4 • The Land Before Time XIV|