Six months after he was spotted kissing his StartUp co-star Allison Dunbar, Ron Perlman has filed from divorce from his wife of 38 years, Opal Stone.

TMZ reports the 69-year-old actor filed the divorce petition in Los Angeles on Tuesday, though no cause of divorce was listed.

The documents do reveal the date of separation was on May 10, five days before Perlman was spotted kissing Dunbar for the first time.

Divorce: Six months after he was spotted kissing his StartUp co-star Allison Dunbar, Ron Perlman has filed from divorce from his wife of 38 years, Opal Stone (pictured in April 2018)

Kissing: The documents do reveal the date of separation was on May 10, five days before Perlman was spotted kissing Dunbar for the first time

Perlman got married to his wife Opal Stone on Valentine's Day in 1981, and they have two children together, daughter Blake and son Brandon.

Since the children are both adults (Blake is 35 and Brandon is 29), child support will not be an issue.

The divorce documents filed on Tuesday stated that, if there is any spousal support to be paid, it will be paid to Opal Stone, a jewelry designer.

While it seems he was officially separated from Opal Stone when he was seen kissing Allison Dunbar, that was not known when the photos of them surfaced.

Perlman was spotted coming out of Alexander Steakhouse in Pasadena, California after spending an intimate dinner with Dunbar in May.

The original Hellboy star was later seen taking their dogs for a walk just days after they were seen kissing together.

Dog walk: The original Hellboy star was later seen taking their dogs for a walk just days after they were seen kissing together; seen on May 22, 2019

Neither Perlman nor Stone have commented publicly about the divorce, and Dunbar has not either.

Ron has been seen in several of Allison's Instagram shots since she joined the cast of Crackle's TV series StartUp in 2018.

Last February, Dunbar shared a photo of Perlman and his daughter Blake all having dinner together.

Close: In February 2018 Allison shared this photo showing her on friendly terms with Ron's daughter Blake, 35

'The Perlmans and the Dunbars. Two dynasties collide over the avocado salad. Love my new friends a lot.' Allison captioned the snap.

Perlman will next be seen in the animated comedy Go Fish with Mark Hamill, which hits theaters November 19.

Dunbar has recently guest-starred on Yellowstone, The Donors and Single Parents, and stars in upcoming films The F**k-It List, The Opening Act, Film Fest and Browse.