Christina Applegate's ex-husband Johnathon Schaech is now officially the ex-husband of ANOTHER actress -- because his divorce from "One Tree Hill" star Jana Rae Kramer was just finalized.



According to the docs, filed last week in L.A. County Superior Court, the split seems pretty amicable -- both Schaech and Kramer (right) waived their rights to spousal support.

Their marriage was a whirlwind failure -- Kramer filed for divorce in August last year, less than two months after they got married.

And get this ... the couple was only married for TWELVE DAYS before they separated.

Of course, this ain't Schaech's first rodeo -- he went through the whole divorce thing with Christina Applegate back in 2007.

Christina Applegate's ex-husband Johnathon Schaech is about to be the ex-husband of another actress -- because Schaech's current wife just filed for divorce ... less than two months after they wed. 


According to legal documents filed in L.A. County Superior Court -- and obtained by TMZ -- "One Tree Hill" actress Jana Rae Kramer filed for dissolution of marriage on August 20.

The couple tied the knot on July 4th -- and announced their split less than a month later.

Schaech went through the whole divorce thing with Christina Applegate back in 2007.

UPDATE: In the divorce docs, it shows the couple was only married for 12 days before separating.