The Boys' Eric Kripke just can't stop adding individual from his past gig. The latest Supernatural veteran making the leap to the superhero satire is Jeffrey Dean Morgan.###Details in/with regard to’concerning’regarding his character remain unknown in/with regard to’concerning’regarding now, and he'll be a recurring guest star rather than a regular (which probably also has something to do with scheduling around his Walking Dead spin-off duties).###Having played Sam (Jared Padalecki) and Dean's (Jensen Ackles) demon-hunting father John Winchester, he'll now follow Ackles and fellow Supernatural alumnus Jim Beaver to the series.###It also marks Kripke making rosy’remarkable’fabulous’terrific’preeminent on a promise between the two (even if it'll be a season later than planned).###The Boys team are now shooting the fourth season, which will arrive on Prime Video next year alongside new college-set spin-off series Gen V.