|Behind the scenes|
|First appearance||The Ultimate|
|Last appearance||The Answer|
|Cause||Death by Dracon beam during Yeerk battle|
- "Are we supposed to use, like, weapons? I'm pretty opposed to guns."
- ―Liam to Cassie
Liam was a young boy recruited to be one of the Auxiliary Animorphs.
The Auxiliary Animorphs
- "Slowly our team formed a line. Grizzly. Gorilla. Tiger. Andalite. Hawk. Wolf. Then James's team. Lion. Crocodile. Bobcat. Bull. Then Craig's team. And Erica's. Slowly the visser's attention was caught. Maybe I imagined the look of fear that flitted across his enigmatic Andalite face as he surveyed our forces. Maybe not. But for the first time since this war had begun, it looked like a fair fight."
When the Animorphs began looking for new members, Liam was one of the recruits selected by James. His disease, condition or reason for being in the children's hospital is unknown, but he was not healed by the morphing process.
Liam, along with the rest of the Auxiliary Animorphs, were killed in the final battle against the Yeerks' Pool ship. They had sacrificed their lives to assist Sam Doubleday's ground force as the original Animorphs invaded the Pool ship. Jake heard Visser One gleefully order the Pool ship's gunners to kill any animals in the fight below, until the gunners report none are left.
|Red-Tailed Hawk (Tobias)||The Ultimate|
|Animorphs||Jake | Rachel | Tobias | Cassie | Marco | Ax | David|
|Auxiliary Animorphs||James | Collette | Timmy | Kelly | Craig | Erica | Julio | Liam | Tricia | Jessie | Judy | Ray|