He's the epitome of co-parenting success with ex Naomi Watts.

And Liev Schreiber was right on trend as he was spotted chaperoning his two sons - 9-year-old Sasha and 8-year-old Kai - to Comic Con on Friday.

The 49-year-old actor cut a casual figure as the boys dressed up in their favorite superhero costumes before meeting up with mom Naomi in ET's Comic-Con suite.

Family man: Liev Schreiber, 49, was spotted chaperoning his two sons - 9-year-old Sasha and 8-year-old Kai - to Comic Con on Friday

The eldest boy, Sasha, donned a layered robe ensemble to channel a Star Wars Jedi while Kai went all out with his Harley Quinn costume.

Liev was at the annual convention to promote his new film My Little Pony while Naomi was there for her stint in the Twin Peaks re-boot.

Liev's character in the animated re-imagining of the beloved 1980's cartoon is Storm King, whom he refers to as the villain of the bunch.

'This is the Storm King, who is the egomaniacal baddie in the My Little Pony movie. I think he's part Yeti. I think he's also part goat,' he told ET's Kevin Frazier.

Doting dad: Liev cut a casual figure as he led his sons through the annual exposition

Comic Con fans: The eldest boy, Sasha, donned a layered robe ensemble to channel a Star Wars Jedi while Kai went all out with his Harley Quinn costume.

'I would have to say the Storm King has more power,' Liev joked when asked to compare Storm King to his titular role in Showtime's Ray Donovan.

Liev stated that he needed his sons' approval before taking on the new role in My Little Pony.

Their only requirement for one of their parent's new project is that it's rated for children, so they can enjoy it.

Co-parenting winners: Liev escorted his sons around the convention until they met up later mom Naomi Watts

Which substantiates Naomi's earlier claims that her son Samuel cannot see her iconic horror film The Ring until he is old enough.

'My youngest son is very into the horror genre,' she told US Weekly adding that he continually asks about her 2002 classic.

However, he won't be permitted until she feels he is ready for such adult fare.

Naomi can currently be seen in Netflix's Gypsy, while Leiv's My Little Pony will hit theaters in October.