Snow monster (Be Cold, Scooby-Doo!)

The snow monster was the disguise of Heidi Ho Swift. She was actually wearing a snowman called Mr. Roundy as a suit.

Physical appearance
Insert details here.

Personality
Insert details here.

''Be Cool, Scooby-Doo!
Insert details here.

Appearances

 * Be Cool, Scooby-Doo!
 * 119. Be Cold, Scooby-Doo! (no lines)