10. Tessa Thompson
With "Thor: Ragnarok", HBO's "Westworld" and "Creed 2", Tessa Thompson had a fantastic year.
9. Josh Brolin
After joining the "Deadpool" universe, Josh Brolin lands in the top 10, sitting at number nine.
8. Hannah John-Kamen
Hannah John-Kamen's supervillain role in "Ant-Man and the Wasp" caused an outpour of love for John-Kamen, landing her at number eight.
7. Jessica Barden
Jessica Barden's breakout role in Netflix's "End Of The F**king World" launched her to the seventh spot.
6. Lily James
Lily James starred in quite a few smaller projects, like Netflix's "The Guernsey Literary and Potato Peel Pie Society" and the indie drama "Little Woods" this year. But her role as young Donna in "Mamma Mia: Here We Go Again" allowed her to nab the sixth spot on IMDb's list.
5. Rebecca Ferguson
Rebecca Ferguson starred in two big films in the last year, helping her land at number five.
Ferguson rocked both "The Greatest Showman" and "Mission Impossible: Fallout".
4. Tom Hardy
With "Venom" hitting theatres in 2018, Tom Hardy, 41, lands at number four on IMDb's top searched stars list.
3. Alicia Vikander
Alicia Vikander took the "Tomb Raider" torch from Angelina Jolie in 2018.
The blockbuster flick launched the Oscar-winner, 30, into superstardom.
2. Bryce Dallas Howard
After a quiet 2017, Bryce Dallas Howard's reprise of her role as Claire Dearing in "Jurassic World: Fallen Kingdom" put her at number two on IMDb's list.
1. Karen Gillan
Not only did Karen Gillan star in "Avengers: Infinity War" in 2018, but she added director to her resume after writing, directing and starring in "The Party’s Just Beginning".