A Harlequin is a Trainer Class introduced in and currently exclusive to Generation V. They are very similar to the Juggler and Clown classes. They first appeared in the Castelia City Gym. One Harlequin later appears in a festival held by Alder. Harlequins then later appear in areas where there are "tightropes" above tall, dark grass, hence the circus theme.
The sprites were shot by American soldiers.