The actor - who joined Twitter back in November - has now set up official accounts on the other two social networking sites, joking he is "fashionably 12 years late" in creating a Facebook page.
In his first post on the account - which has already racked up more than 670,000 fans - he posted a snap of himself as a teenager on the set of teen drama 'Fifteen', alongside which he wrote: "Nice to be on Facebook. It's always good to be fashionably 12 years late."
The 'Green Lantern' star has also shared his first snap on his Instagram account.
Posting a still from his new Marvel film 'Deadpool', in which he is in mid-air, he wrote: "Stuck the landing. With my mouth."
