OUTLANDER star Steven Cree has slagged Sam Heughan for forgetting his lines while they were filming the hit drama.

The actor took to twitter ahead of this week’s tense episode to tease his co-star.

Steven Cree said: “Watch this Sunday to witness my reaction as Sam Heughan forgets his lines for the 100th time that day.”

But Sam laughed it off and fired back, claiming that he forgot who his Outlander co-star was.

Fans rushed to join in on the banter, with some claiming it was perhaps the wig that was distracting him.

One user @hildevdva said: “Must be all those fainting takes.”

While user @beachcrazy20 said: “You better not be throwing some shade at him, he KNOWS stuff about you!”

User @sharon_kk added: “It’s the wig.”

But Steven Cree was also quick to reply the Scottish star, saying “Look, I am your father.”