Name Cassie
Nationality American
Gender Female
Race Human
Age 20
Height 5'5"
Weight 150 lbs.

Cassie is one of the original Animorphs. She is most noted for her qualms against the war and her attempts to broker peace between all sides. She is known to be an expert at reading and understanding other people's motivations.

Canon History

Contains Spoilers
Cassie's life was pretty much perfect until the day she, Jake, Rachel, Marco, and Tobias met the dying Prince Elfangor. From him, she learned about the war between the Yeerks and Andalites.

Although she fought in the First War for its duration, there were several times when Cassie's moral qualms resulted in her refusing to go on missions (such as in book 43: The Test) and even leaving the war (such as in book 19: The Departure).

After the war, Cassie went on to be a government worker concerned with the planet's ecological systems in light of alien intervention. She also became romantically involved with Ronnie Chambers.

Neomorphs History

Cassie was recruited back into the war in book 55: The Prologue. She served with the Animorphs until book 61: The Judgment, when she abandoned the team to be with Ronnie. This caused a rift between her and the other Animorphs, especially Tobias. Cassie returned to the war in book 66: The Hunters.

Personal Life

Cassie and Jake remain at a distance from each other; most likely due to the close bond they once shared. She is now engaged to Ronnie Chambers. Cassie seems to have drifted away from her old friends, largely due to her decision to leave the Animorphs for a time.

Cassie and Tobias seem to be diametrically opposed. This is rather ironic. They both share the same moral principles. However, Tobias believes that in a time of war, those must be sacrificed while Cassie holds that a time of war is when they matter most. Such discussions are frequent between the two of them but are not hostile. After she left the team, Tobias refused to interact with her. Even now that she is a full member again, their relationship is frosty.

Cassie died in book 73: The Defender when she found herself trapped on the wrong end of a fight with Guraff 427.

Notable Changes

Cassie has undergone no notable changes from the original canon portrayal.


  • Horse
  • Osprey
  • Flea
  • Wolf
  • Trout
  • Squirrel
  • Dolphin
  • Seagull
  • Ant
  • Cockroach
  • Housefly
  • Great Horned Owl
  • Humpback Whale
  • Rat
  • Termite
  • Skunk
  • Wolf Spider
  • Bat
  • Human (Rachel)
  • Horse
  • Parrot
  • Hammerhead Shark
  • Mole
  • Mosquito
  • Leeran
  • Caterpillar
  • African Elephant
  • Anteater
  • Seal
  • Polar Bear
  • Giant Squid
  • Chimpanzee
  • Eel
  • Yeerk
  • Hork-Bajir (Jara Hamee)
  • Cockatiel
  • Orca
  • Cheetah
  • Pit Viper
  • African Cape Buffalo
  • Honey Bee
  • Hork-Bajir
  • Kangaroo
  • Beaver
  • Dragonfly
  • Anati (Head)
  • Human (Vladimir Putin)

capnnerefir on killing Cassie.
on the Animorphs fan forum, capnnerefir gave a statement about why he chose to kill Cassie off.

Killing Cassie actually had nothing to do with hating her, nor was it (as an anonymous reviewer suggested) motivated by a desire to remove the moral element from the Alphamorphs. If it was about hating Cassie, I'd have killed Ronnie instead, thus affording Cassie the opportunity to grow and change as a person and become someone I respected and maybe even liked, rather than hated. Likewise, I wouldn't want to completely remove any moral voice from the Alphamorphs; having everyone blindly go along with Tobias is sort of boring, and you'll definitely see a new voice for morality take Cassie's place. I killed Cassie for a couple of reasons. The first was that I felt I needed to remind everyone that the Animorphs are still in some very real danger. It's been a while since someone really suffered and after I brought Jake back from the dead, I think there was, by and large, a feeling that even if I did kill someone, they would come back later. I assure you that this is not the case and that characters who die will never come back. I felt like I had to kill someone soon, lest we all forget the danger that our heroes (and antiheroes) face. So, why Cassie? Mainly: plans. I have plans for the rest of the Animorphs but realized that I've got no idea where I might want to take Cassie. After giving it some thought, I realized that there wasn't anywhere for her to go unless something very major happened to her. the two biggest things I could think of for her were birth and death. And since Rachel's already pregnant, I decided not to use that for Cassie. This meant that, in order for there to be anything that happen to her, someone would have to die. I considered killing some people close to her (her parents and Ronnie) but decided that doing so wouldn't change her much. After all, after Rachel died, Cassie's personality and worldview were not at all altered. I still considered killing Ronnie, but then I realized that I could have some real fun with him in the future. I switched from trying to figure out how to make Cassie interesting to thinking about what fun I could have with Ronnie. Another factor is that I really don't feel like I write Cassie well, and attempting to writer her (whether I am successful or terrible at it) is a chore for me. There's a pile of lesser reasons, but those two are the biggest and most important.

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