LOS ANGELES, Jan 16 — On the second season of Stranger Things, David Harbour won fans’ hearts when his character Jim Hopper morphed from grumpy sheriff to reluctant father figure.

If you thought he couldn’t top that, check out these pictures in which he gatecrashed a fan’s high school yearbook shoot.

In all began in October, when a student called Damaris tweeted to Harbour to ask how many retweets it would take for the star to "take my senior photos with me”.

Harbour replied to say 25,000 retweets, adding: "And I get to wear the school sweatshirt and hold a trombone”.

Damaris’ original tweet was retweeted over 30,000 times and Harbour kept his promise, inviting the student to the Netflix studios to get the shots professionally taken.

In the hilarious photos, Harbour is iseen wearing the school’s official sweatshirt and holding a trombone.

Other pictures capture him shaking pom-poms too.

Harbour posted the photos to Instagram, writing: "Voted most likely to hijack someone’s high school senior photos 24 years later. Many thanks to @postydamaris and her kind family and @iamtommyg photography for making a dream come true and proving my high school classmates right!!”

Damaris also posted a behind-the-scenes video from the shoot.