The Grim Adventures of Billy and Mandy - Season 3 Episode 13
When Billy and Mandy are utterly bored, Grim takes them to Underworld's "Circus of Fear". The ringleader, Dr. Fear, notices Billy and Mandy, and tries to recruit them into the circus to attract customers, who would pay to see real, live humans. After they go back home, Dr. Fear captures the two kids, and Grim has to get them back. During the show, Mandy breaks free and in a strange twist of the story, she reveals that the beastmaster, Clortho, is actually Dr. Fear, who in turn is just an earthworm, leaving Billy confused.
First Air Date : 2001-08-24
Last Air date : 2007-11-09
Runtime : 57 minutes
Genre : Animation, Comedy, Kids
Cast : Greg Eagles, Richard Steven Horvitz, Grey DeLisle, Vanessa Marshall
Crew : Brian A. Miller (Executive Producer), Jay Bastian (Executive Producer), Gregory Hinde (Music), Drew Neumann (Music)
Quality : 
Subtitles :
- Season 3 : Episode 12004-06-11
- Season 3 : Episode 22004-06-11
- Season 3 : Episode 32004-06-18
- Season 3 : Episode 42004-06-18
- Season 3 : Episode 52004-06-25
- Season 3 : Episode 62004-06-25
- Season 3 : Episode 72004-07-02
- Season 3 : Episode 82004-07-02
- Season 3 : Episode 92004-07-02
- Season 3 : Episode 102004-07-09
- Season 3 : Episode 112004-07-09
- Season 3 : Episode 122004-07-16
- Season 3 : Episode 132004-07-16
- Season 3 : Episode 142004-07-23
- Season 3 : Episode 152004-07-23
- Season 3 : Episode 162004-07-30
- Season 3 : Episode 172004-07-30
- Season 3 : Episode 182004-08-01
- Season 3 : Episode 192004-08-01
- Season 3 : Episode 202004-08-08
- Season 3 : Episode 212004-08-08
- Season 3 : Episode 222004-10-15
- Season 3 : Episode 232004-10-15
- Season 3 : Episode 242004-10-22
- Season 3 : Episode 252004-10-29
- Season 3 : Episode 262004-10-29
- Season 3 : Episode 272004-11-05
- Season 3 : Episode 282004-11-05
- Season 3 : Episode 292004-11-12
- Season 3 : Episode 302004-11-12
- Season 3 : Episode 312004-11-26
- Season 3 : Episode 322004-11-26
