Animorphs

[The 11th Doctor]

Five kids meet a dying alien who gives them a box that lets them become any animal they touch. They use it to fight alien parasites called Yeerks, who take over your brain. They are...The Animorphs!

Jake, the leader

Cassie, the I-love-nature-and-peace girl

Rachel, the tough girl

Marco, the wise-cracking jackass

Tobias, the weird Loner dude that got turned into a hawk

Ax, the Alien deer-thing

Together, they are the Animorphs. Basically, once they touch something, any animal, land, sea, or air, they can turn into it whenever they please. Jaguar? check. Antelope? check. Flamingo. check. Lizard? check.

Tell me what you think? Crossover?

[The Fifth Doctor]

As soon as I saw the title of this post.
I realised this would be perfect.
Baggsys Marco.

[The 11th Doctor]

looks like this died. Badly.

[The Fifth Doctor]

No, you just need to make a thread.