She is set to play a villainous siren in the upcoming flick Suicide Squad.

But between the sets, actress Margot Robbie, 25, played the role of ink-master by offering free tattoos for all her fellow castmates, while leaving one unlucky victim with a misspelled etching.’I did spell one wrong once on an epic dude named Simon, who was Jai Courtney’s cast assistant,’ Margot chuckled while appearing alongside Tina Fey on Sunday night’s edition of The Late Show with Stephen Colbert.

Whoops! While appearing on Sunday night’s edition of The Late Show with Stephen Colbert,  Margot Robbie (L) revealed she accidentally made a spelling error while etching a tattoo on the arm of a fellow Suicide Squad star

‘At first I really had to beg people’: She also revealed that it had taken a while for others to warm up to the idea of her acting as tattoo artist for the day. Pictured with actress Tina Fey

 

The Australian actress explained that she acquired a tattoo gun while filming, and decided to put her artistic skills to the test by inking as many people on set as possible with the word ‘SKWAD’.

‘He put his hand up first to get the ‘skwad’ tattoo’, she said of Simon.

She continued, ‘It’s pretty big, it’s on his arm. Everyone was spelling it ‘SKWAD’, and I went straight from the ‘s’ to the ‘W’, so it read ‘SWAD’.

‘I did spell one wrong once on an epic dude named Simon, who was Jai Courtney’s cast assistant’: She admitted that she had made quite a permanent error at the expense of her unsuspecting victim

High hopes: The Australian actress explained that she inked as many people on set as possible with the word ‘SKWAD’

‘It’s pretty big, it’s on his arm’: The Australian actress cringed as she regaled the cringing memory

Practice makes perfect! The blonde bombshell explained that she had improved since the spelling error, and has so far tattooed 26 people

New project: The former Neighbours promoted their Whiskey Tango Foxtrot, an upcoming American comedy war film