Harkin Shire is a pre-made future Sim living in Oasis Landing, from The Sims 3: Into the Future. He lives with his roommates Drake Chambers and Kel Gwyn and is friends with both. He can be made playable by marrying him, or asking him to move in.
He is implied to be a laid-back type who goes along to get along, but worries that there might be some spark between him and Kel. Like all pre-made Sims from Oasis Landing, he has the Future Sim hidden trait. He has mastered his Advanced Technology skill and has 4 skill points in Laser Rhythm-a-con.