The Friendly Ghost, Casper #135

When Mr. Anything disguises himself as Casper to boss around the forest animals, they quickly see through the ruse and knock him out—only for an alien invasion force from the planet Treachero to arrive, mistaking the real Casper for Mr. Anything and launching their plan.

In "The Secret," a shape-changing alien arrives on Earth, only to flee in panic after mistakenly believing the planet is armed with powerful weapons. Now hiding in the forest, the alien tries to live quietly—until a chance encounter with Mr. Anything threatens to expose the secret he’s been keeping.