List of Characters in Camp Lazlo - Camp Kidney Staff - Scoutmaster Lumpus

Scoutmaster Lumpus

Lumpus is an angry, selfish, stingy moose with a large ego. He is a secondary antagonist of the show. Tom Kenny voiced Lumpus. Lumpus refers to himself on the show as Algonquin C. Lumpus; however, the Cartoon Network press release refers to him as Scoutmaster Leonard Lumpus.

Murray originally created Lumpus as a horse; Murray changed the design to a moose when the design seemed more "mountain" to the Camp Lazlo creator. Murray experimented with voices, imagining (and later disliking) a "Don Knotts"-like voice. Murray described Kenny's voice as a "crazy mix of Richard Nixon and W. C. Fields." Murray stated that he enjoyed writing situations involving Lumpus as the character that had "no morals and zero conscience". It was revealed that in some episodes, Lumpus was a former Bean Scout from the same camp when he was a young kid. He is always in a bad mood and this horrible disposition could have been caused by his parents' failure to visit him at camp when he was a Bean Scout and tell him that they love him or even show any signs of care for him. It was seen in the episode "Slug Fest" that Lumpus does appreicate Slinkman. As Camp Lazlo episodes entered production, Slinkman, Lumpus's right-hand man, takes increasing control of the camp as Lumpus increasingly becomes mentally incapacitated. In a way to show difference between characters: Lumpus loves clowns and Lazlo hates clowns. Kenny, during a recording, thought of a scenario involving Lumpus locking up the real scoutmaster, described by Murray as bearing resemblance to Heffer Wolfe of Rocko's Modern Life, into a closet. The real scoutmaster said that Lumpus locked him in the closet since this summer. Murray decided to use the concept as a twist ending in the last episode, adding that the twist "tied up his character well."

The official Cartoon Network press kit describes Lumpus as a "frustrated" and "egomaniacal" individual who "needs to have his world in complete order". The Hollywood Reporter reviewer Ray Richmond described Lumpus as "thin-skinned". Common Sense Media reviewer Joly Herman, whose review is posted on Go.com, describes Lumpus as the "primary malignant, greedy character who yells at the campers and ends up getting his just desserts in the end" and characterizes his yelling as "frightening, even if Lazlo does not take him seriously".

Lumpus throws temper tantrums, complete with screaming, stomping and/or crying if his demands are not met. He wishes to become the Head Scoutmaster and feels disappointment with his current role.

Lumpus has a crush on Squirrel Scout leader Ms. Jane Doe, who is oblivious to his constant attempts to take her on a date. Lumpus enjoys Doe's "Minnesota accent." Towards the end of Camp Lazlo, Lumpus marries Doe (though in one episode he was already married to a migrating mulberry tree).

It was also revealed at the end of the series that Lumpus was not the official scoutmaster of Camp Kidney, but an imposter. The real scoutmaster manages to get the officers to put him in a mental hospital/cell under a strapjackeet. The real scoutmaster may be lying because he stated that Lumpus had locked him in the closet this summer, but Lumpus has been the scoutmaster for many years (though it turns out he got to be scoutmaster by buying fake badges) and that the real scoutmaster may be framing Lumpus. Also, in one of the episodes, it was revealed that Scoutmaster Lumpus was given the job from his dad from the Bean Tree, which was once owned by his grandfather. However, there's a contradiction on that episode for it said Lumpus' grandfather got Camp Kidney from a descendant of the camp's founder but another episode shows the founder as still alive and still owning Camp Kidney. Lumpus would still have the job after his arrest, due in the conclusion in the episode "Dead Bean Drop" end credits, showed that Lumpus is still scoutmaster in the future, despite the dispute that he's not the real Scoutmaster. The real scoutmaster resembles both Scoutmaster Lumpus and Heffer Wolfe and is too voiced by Tom Kenny.