Credit: Carol Kaelson/ABC Television Group © 2012 Disney Photo: Guest Star Jack Wagner Holds a Drink in Castle Season 5, Episode 10: "Significant Others"

Castle is notorious for rounding up phenomenal guest stars, and tonight’s episode is chock full-o’ soap opera vets.

In addition to General Hospital alum Nancy Lee Grahn, The Bold and the Beautiful’s Jack Wagner also has a small, yet pivotal role, who he described to Buddy TV as a “broken man whose ex-wife left him and now he’s being charged with murder.” Oy! However, it’s his off-screen antics that got us excited.

The seasoned actor said he “had a great time hanging out with Nathan [Fillion] and Stana [Katic]" on set; in fact, his crazy fun included “acting like a couple of stupid teenagers” with Nathan.

Oh, to be a fly on those walls!

In addition to palling around with our two favorite actors, Jack spilled that he was a big Castle fan before signing on for his guest spot. “It’s a great show,” he enthused, although sadly, he doesn’t think his character will be back anytime soon.

Are you excited to see Jack guest-star tonight? Sound off below!

Source: Buddy TV

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