Colin revealed that he and his family have just moved to Springfield from Ireland and that his father is a musician and humanitarian, but strenuously denies it's Bono from U2. Aside from that particular mention, none of the rest of his family is seen nor mentioned.
Colin and Lisa first met coincidentally whilst trying to inform Springfield citizens, in a door-to-door manner, of the pollution in Lake Springfield.
They overhear one another and soon begin to finish each other's sentences on pollution. Lisa calls him dreamy whilst speaking to the town about the pollution in Lake Springfield, which greatly annoys neighbors.
During Trappuccino, when an ensuing mob comes after the Simpsons, Colin was one of the few people who didn't turn against the Simpson family and even was among the mob with a bouquet of flowers for Lisa, which was turned into a torch by Carl. After the Simpsons manage to escape the dome, Lisa was forced to leave Colin behind. As a goodbye, Colin wrote a song entitled 'Lisa's Song' which he performs with his guitar, but, unfortunately, she cannot hear due to the Dome's thick glass wall.
He then writes out the notes in marker on the glass so Lisa can understand the tune, which she does. After making sure Bart doesn't ruin the moment by punching him, she reluctantly waves goodbye to him and leaves.
Once Lisa returns to Springfield at the end of the movie, Milhouse claimed that Colin died, making a poor mimic of his voice to try to get Lisa to hold his hand due to his own feelings for her.
He then appeared to Lisa's delight and they walked off together to get some ice-cream whilst holding hands. Lisa hasn't mentioned him ever since, implying that the two of them broke up sometime between the movie and He Loves to Fly and He D'ohs.
However, they still appear to be friends. He has made one reappearance, being seen as a member of the rec center's art class.
- – The Simpsons Movie
- Episode – "He Loves to Fly and He D'ohs" (Opening Sequence only)
- Episode – "Lisa the Drama Queen"
Behind the Laughter
- He claims to be musically proficient in many instruments including piano, guitar, trumpet, drums and bass guitar.
- He also has a keen interest in fighting pollution.
- Lisa believed his dad to be Bono out of U2.
|Russ Cargill • Colin • Medicine Woman • Plopper • Multi-eyed squirrel • Arnold Schwarzenegger • Panicky Man • Bomb Disarming Robot|
|Ms. Albright | Alice Glick | June Bellamy | Belle | Billy (actor) | Booberella | Colin | Cosine | Crazy Cat Lady | Michael D'Amico | David (Treehouse of Horror XVI) | Devan Woosterfield | Dia-Betty | Mia Farrow | Ginger Flanders | Mrs. Glick | Adil Hoxha | Bernice Hibbert | Cookie Kwan | Lester | Audrey McConnell | Medicine Woman | Mrs. Muntz | Lindsey Naegle | Manjula Nahasapeemapetilon | Opal | Poor Violet | Lois Pennycandy | Pepi | Phillips | Brunella Pommelhorst | Ronaldo (Blame It on Lisa) | Dr. Simpson | Agnes Skinner | Brandine Spuckler | Jitney Spuckler | Whitney Spuckler | Spud | Dolph Starbeam | Clara Stetson | Gino Terwilliger | Dame Judith Underdunk | Veronica | Vicki Valentine | Plopper | Princess Diana|