SCOTTISH actor Martin Compston hit back at a troll who directed “anti-Catholic” language at him following Celtic’s defeat to Hearts last night.

The Line of Duty actor, who is from Greenock, was reportedly called a “t*** parasite” as Scottish football’s new season kicked off.

The Celtic supporter gave his take on the Tynecastle match, saying he had “no complaints” despite the 2-1 defeat.

“Have all the possession ye want outwith a right back individual goal never created a thing til 93rd minute,” the fan declared. “Defence a shambles as per, blame lies squarely with the board had a CM startin CB on/off for 4 yr now. Getting blanked in the ballot a kindness at this point.”

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According to the Scottish Sun it was just minutes later that a Twitter user told Compston: “F*** up polis, 2 in a row ya t*** parasite”.

Compston (above, centre) has frequently used his social media platform to call out abuse from sectarian as well as Unionist trolls, and last night was no different.

He responded with laughing face emojis and noted it was only the first day of the new season.

“Fair play it’s tradition get the anti Catholic sentiment out early set yer stall out.”

The tweet was removed quickly, but the user wrote this afternoon: “What a day yesterday DS Arnott greeting in ma face, t**** an absolute mess.”

The exchange came just months on from the actor calling out another troll who branded him a “Fenian c***”. The same man had shared comments calling for an end to “bigotry in football”.

Compston pointed out that the “bold” man was so concerned with discrimination in football – “unless you’re a Catholic of course”.

READ MORE: Line of Duty's Martin Compston hits out at sectarian Twitter troll

The independence supporter also won praise ahead of the election for his comments on the Scottish Conservatives.

After Tory supporters claimed Compston didn’t deserve a say as he isn’t in Scotland 100% of the time, he joked that they were “enraged” that he’d dared to express an opinion.

“Apparently it isn’t valid … as they claim I don’t live here. In that case could you do me, the postman and the environment a favour and stop sending me literature asking for my vote.”

Days before the May election – the same day as the Line of Duty finale – Compston also appeared in an online SNP rally, alongside Alan Cumming and Brian Cox, backing the party.