Gus Carmichael is a former resident of Elm Tree House I. He is currently part of an orchestra.
Before the Show
It is unknown as to why Gus is in care. Gus's father is mentioned a couple of times, where he once visited him, and another time it is mentioned he has moved to Germany.
When Tracy first starts her job at the Dumping Ground, Gus attempts to give a Tracy a tour of the building (as he does with all newcomers), but this is repeatedly delayed due to Tracy continuously being late. Gus eventually does manage to show Tracy around, only for Tracy to repeatedly talk, which Gus feels is against his rules for the tour. She also writes in Gus' notebook, which upsets Gus greatly.
We later learn that Gus has made a list of all of everything Tracy has done wrong on her first day as staff. Liam suggests that Gus instead keep a list of everything Tracy has done right, which he eventually reads to Mike, convincing him to keep Tracy.
Gus likes keeping notebooks of his achievements, events that have taken place in the Dumping Ground and various lists (such as Mike's excuses for his "silent but deadlies"). In the episode Secrets, Liam and Frank discover Gus's notebooks and find Gus has written about them doing the bin dive. The books are confiscated by Mike and Gina, who too find that Gus has written incriminating things about them, leading to all four characters disposing of the pages from Gus' notebooks. Gus, however, finds out that pages have gone missing and reveals their contents at breakfast, telling everyone that if they are wanting to read his notebooks, they should ask first.
Gus also enjoys playing the piano and has a set time during which he practices daily. He does not like to be interrupted during practice. In the episode Sisters, Gus gets an audition for an orchestra for his piano playing.
In Season 2, Gus gets himself a date with a girl from his orchestra group, Jenny. He asks Dumping Ground kids and staff for advice and his date goes well. The day after the date, Jenny learns that some of the children have gone to entertain the elderly at a care home. This leads to Jenny and Gus entertaining the elderly on the flute and piano, respectively.
It is known that Gus eats only quiche on Fridays, and macaroni cheese on Tuesdays.
In the feature length series opener 'Freedom'. Gus has a meltdown due to sensory overload when all of the other children are shouting and fighting, and Frank and Rick playing their music really loud. He pulls the pin from a grenade and tells everyone to be quiet or he'll let go. Gus ended up dropping it when Rick tried to get it off him, but luckily Faith managed to throw it into the cellar to hopefully avoid anyone getting hurt, but the grenade does not explode so nobody is injured. Faith ends up calling the army group to remove the grenade, she's a bit shocked when they tell her that they're going to have to blow up the grenade whilst it's in the house before it's removed. But luckily it was a very small and tiny explosion.
Later in the series, Gus is adopted by a gay couple (Ronnie and Dawn) and leaves the dumping ground. This causes some of the other children in the Dumping Ground to fight due to some homophobia from Johnny Taylor and Lily Kettle. Mainly from Johnny who makes it very clear how he feels about the situation, causing him and Elektra to constantly fight, as Elektra was disgusted by what Johnny was saying and became very pationate to defend gay couples adopting and that it's Gus' decision, not Johnny's.