The actor, 48, cut a suave figure in a black tuxedo which he paired with a white shirt and a black bow tie.
He oozed confidence as he posed during the La Jeune Fille Et La Nuit (The Girl And The Night) red carpet premiere.
Dapper: Ioan Gruffudd looked sun-kissed as he attended the 4th Canneseries Festival in France on Sunday
He completed his look with a smart pair of black leather shoes as he posed up a storm.
The star was later joined by Ukrainian actress Ivanna Sakhno and French actor Gregory Fitoussi.
The French Riviera-set series is adapted from Guillaume Musso’s bestselling novel.
Directed by Bill Eagles the English-language series is produced by Sydney Gallonde at Make It Happen Studio and co-produced by MGM International TV Productions and public broadcaster France Televisions.
Chic: The actor, 48, cut a suave figure in a black tuxedo which he paired with a white shirt and a black bow tie
The story opens in the present day, at a high school reunion in the south of France where three former friends reconnect.
Having grown apart and lost touch, they are still bound by a tragic secret tied to the disappearance of a high school girl who went missing 25 years ago in the region.
Gruffudd is currently going through a messy split from ex-wife Alice Evans and he filed for divorce in March, citing irreconcilable differences as the reason behind their separation.
The document, which was filed in Los Angeles Superior Court on March 1, revealed the former couple separated on New Year’s Day – a month before they went public with their relationship status.
In good company: The star was later joined by Ukrainian actress Ivanna Sakhno (centre) and French actor Gregory Fitoussi (right)
At the time, they had shared a joint statement that read: ‘As you can imagine, this is an incredibly difficult time for our family and we remain committed to our children. Thank you for respecting our privacy.’
It’s reported the divorce papers state the exes are in a ‘collaborative process and intend to resolve all issues including spousal support by written agreement’.
Evans, meanwhile, had addressed the pair’s split in a shock statement shared to Twitter in January in which she claimed Ioan had ‘mentally tortured’ her.
The mother-of-two also accused her estranged husband of ‘winding the s**t up me’ as she posted a vitriolic video about their ‘collaborative divorce’ talks.
Sad news: Gruffudd is currently going through a messy split from ex wife Alice Evans and he filed for divorce in March, citing irreconcilable differences as the reason behind their split
She said: ‘I have been served with a petition for divorce and it’s came out of the blue and I won’t cry. But we’ve been 20 years together, we have two amazing kids. I don’t know why.
‘At the moment we’re doing something called collaborative divorce which is somewhere between a really kind way of doing divorce and a phenomenal scam.
‘Because in one way it’s “okay, let’s hear what you would want and take it to the court afterwards” and in another way it’s like, people in the acting business will know when an agent says to you “we just can’t find you the roles.”
Split: Evans split from Liar star Gruffudd earlier this year, with the Welsh actor filing for divorce in March citing ‘irreconcilable differences’
‘It’s a bit like, I’d like my daughter to stay with me on Saturday nights, “it’s just not within our possibilities.”‘
Evans then insisted Gruffudd had misled her with collaborative divorce, adding: ‘And then I read nothing is binding in collaborative, absolutely nothing.
‘So if I want my daughter to stay one more night in my house, the court hasn’t said anything so I can do it. So my husband is winding the s**t up me, saying what he says is the law, well we haven’t got to the law yet.
Family: The former couple are parents to two daughters, Ella and Elsie (pictured above)
‘Lawyers aren’t the law. Lawyers are there to f*** the law. That’s what I always said. Anyway I may have some more thoughts later.’
She was also seen hitting back at criticism over speaking about details of her divorce with Gruffudd so publicly and the impact it may have on their children, Ella, 12, and Elsie, eight.
She wrote: ‘You know what they ARE upset about though? That their Dad walked out and abandoned them out of the blue. Without explanation.’
Evans and Gruffudd met on the set of 102 Dalmatians in 2000, when Alice was in a relationship with Pablo Picasso’s grandson Olivier.
The former couple became engaged six years later after she gave him an ultimatum about their relationship, and they tied the knot in an intimate ceremony in Mexico in September 2007.