United Kingdom, May 14 -- Jason Biggs and Jenny Mollen have separated after 18 years of marriage.

Ending one of Hollywood's longest-running comic partnerships, the pair will apparently remain friends, according to representatives, and closely connected as co-parents to their two children.

A representative for Jason Biggs, 48, and Jenny Mollen, 46, confirmed to PEOPLE on Thursday (14.05.26) the couple had separated but remained on "great terms" and were focused on co-parenting their sons Sid, 11, and Lazlo, seven.

One source close to the pair was quoted telling the outlet the actors were "doing great" and had recently spent Jason's birthday together as a family.

The couple first met while working on the 2008 romantic comedy My Best Fri...