Instagram account: @iansomerhalder
Number of followers: 5.2 million
The star of ‘Lost’ and ‘The Vampire Diaries’ has a massive following on both Twitter and Instagram. The 36-year-old actor and model loves sharing photos of animals and friends, as well as updating people about his projects and causes. If you decide to follow him on Instagram, you’ll get to see some personal photos of Somerhalder and his gorgeous wife Nikki Reed as well.