The guest stars of “Significant Others” posted many tweets and photos while filming the episode. They each gave a behind the scenes look at the episode.
Stephanie Drapeau, who played Michelle Twohey, tweeted about filming and promoted the show.
Off to the set of #CASTLE tomorrow !
— Stephanie Drapeau (@stephanidrapeau) October 26, 2012
On the set of @Castle_ABC . I'm so impressed with the cast and crew. Talented, professional and so very kind!!!
— Stephanie Drapeau (@stephanidrapeau) November 2, 2012
I'm on @Castle_ABC tomorrow night~ Keep an eye out
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— Stephanie Drapeau (@stephanidrapeau) January 7, 2013
Darby Stanchfield who plays Meredith also joined in.
I'm looking forward to it @Stana_Katic XO
— Darby Stanchfield (@darbysofficial) October 26, 2012
Meredith's favorite ammo today includes red lipstick & white panties. #Castle
— Darby Stanchfield (@darbysofficial) October 31, 2012
All #Castle teasing aside, I couldn't enjoy working w/ @Stana_Katic @MollyQuinn93 @NathanFillion more. Beautiful human beings inside & out.
— Darby Stanchfield (@darbysofficial) October 31, 2012
A belated CONGRATS @Stana_Katic on 100 episodes of #Castle. So happy for you girl. XO
— Darby Stanchfield (@darbysofficial) April 5, 2013
Darby Stanchfield also joined fans by live tweeting and answering fan questions.
“@yurikenatalie: @darbystnchfld how about @Stana_Katic ? Do u like working with her?”YES, always! SHE'S LOVELY. #Castle
— Darby Stanchfield (@darbysofficial) January 8, 2013
“@cecimartin: @darbystnchfld How much fun was it to do this scene? Dropping it bag on Martha, lol!” LOVED! Meredith hates Martha
#Castle
— Darby Stanchfield (@darbysofficial) January 8, 2013
ABBY would eat Meredith for lunch. #Scandal/#Castle RT @Dany_Jarvis I spy with my little eye a #DeepFriedTwinkie on #Scandal!
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— Darby Stanchfield (@darbysofficial) October 26, 2012
“@charleycarey: @darbystnchfld Do you think Meredith comes to NYC to see Alexis often? Can't tell what kind of mom she is. #Castle”HORRIBLE.
— Darby Stanchfield (@darbysofficial) January 8, 2013
“@StupendousBoo: @darbystnchfld Did u get to keep Meredith's diamond as a souvenir? U rock”IT WAS MY OWN PROP/IDEA inAlwaysBuyRetail #Castle
— Darby Stanchfield (@darbysofficial) January 24, 2013
“@Cast_Nath: @darbystnchfld Hi U were amazing 2night. How is it to work with @NathanFillion?
) #DEEPFRIEDTWINKIE” HE'S HILARIOUS. #Castle
— Darby Stanchfield (@darbysofficial) January 8, 2013
“@marilyn_texas: @darbystnchfld @ketty_ac @NathanFillion So you cheating on him on #Castle was just payback? #Waitress” Good one!
— Darby Stanchfield (@darbysofficial) November 4, 2012
“@CaskettShipper: @darbystnchfld Was it fabulous working with @Stana_Katic and @NathanFillion? #DEEPFRIEDTWINKIE” ALWAYS IS #Castle
— Darby Stanchfield (@darbysofficial) January 8, 2013
“@avand669: @darbystnchfld How would you describe Stana, Nathan, & Molly? All seem like super cool people.” VERY TALL. FUN. COOL. #Castle
— Darby Stanchfield (@darbysofficial) January 8, 2013
“@LuvTLC: @darbystnchfld Watching you on #Castle right now…” DEEP FRIED TWINKIE BITCHES. #greattimes
— Darby Stanchfield (@darbysofficial) June 19, 2013
Mark Deklin (Corey Francis / Noah Kesswood) and Victoria Pratt (Jane Garrison / Leann Piper) also tweeted about their time on set. Mark tweeted “Stana was certainly dreamy to work with. 
” in response to a fan.
The folks at @Castle_ABC run a really nice set — enjoying myself immensely.
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— Mark Deklin (@MarkDeklin) October 29, 2012
It does! Shooting a fun stunt sequence this morning.
"@Lannatexasgal: I love that show. I hope this means u r guest starring!
)”
— Mark Deklin (@MarkDeklin) October 29, 2012
Shooting a sidewalk chase & Wushu fight with @seamusdever & @Jon_Huertas… It's supposed to be winter, but we're sweating our asses off.
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— Mark Deklin (@MarkDeklin) October 29, 2012
@RoborHood @NathanFillion He was hilarious. It was an all-Canadian evening – even the director, Holly Dale. So fun.
— Victoria Pratt (@ImVictoriaPratt) January 8, 2013
Only the prospect of working with @NathanFillion on #Castle, could convince me to wear a pink sweater twin set on national television.
— Victoria Pratt (@ImVictoriaPratt) January 8, 2013
@NathanFillion Haha! I still think it looked better on you, Nathan.
— Victoria Pratt (@ImVictoriaPratt) January 9, 2013
Jack Wagner (Billy Piper) also gave fans a behind the scenes look.
Sorry I didn't let u guys know about CASTLE, back from NY n been pretty busy since..grateful 2 b working on such a great show!!
— Jack Wagner (@JackWagnerhpk) October 28, 2012
Saw Nancy Grahn on set yestrdy, congrats 2 Nancy 4 getting the part, she'll b great. Stanley is doing well, thnx 4 the lv n prayers
— Jack Wagner (@JackWagnerhpk) October 28, 2012
Castle airs the 7th. I play Billy Piper, down n out alcoholic golf pro who is broken n bitter. Only 1 scene but I Lvd playing him..grateful
— Jack Wagner (@JackWagnerhpk) January 4, 2013
Hey, been out of town 4 a few days. Thnx 4 all ur nice comments about Castle. Really enjoyed working w Nathan n Stana. Felt @ home..Thnx lv
— Jack Wagner (@JackWagnerhpk) January 9, 2013
Finally, Nancy Lee Grahn (Samantha Voss) included her own look behind the scenes and encouraged fans to vote for Castle for the People’s Choice Awards.
the castle prod team and @NathanFillion @seamusdever, jon & lovely Stana practically perfect in every way
— Nancy Lee Grahn (@NancyLeeGrahn) October 27, 2012
Off 2 finish shooting Castle episode. @NathanFillion said he'd make out with you if u vote for Obama. Guys too!
— Nancy Lee Grahn (@NancyLeeGrahn) November 6, 2012
Hiding from Nathan Fillion who is going to kill me over that last tweet! It will be a murder mystery within a murder mystery sans mystery.
— Nancy Lee Grahn (@NancyLeeGrahn) November 6, 2012
having best time @Stana_Katic and @NathanFillion . #castle
— Nancy Lee Grahn (@NancyLeeGrahn) November 7, 2012
Loved working on @castle_abc with @stana_katic @NathanFillion @seamusdever @JonHuertas Vote 4 all of them 4 http://t.co/TBwpitF7
— Nancy Lee Grahn (@NancyLeeGrahn) November 20, 2012
@Stana_Katic let's get you the daytime vote too. I apparently am quite a good vote getterer.
— Nancy Lee Grahn (@NancyLeeGrahn) November 20, 2012
Did everyone vote everything @castle_abc for pplschoice awards? @Stana_Katic @NathanFillion @seamusdever Love the show. Love the cast
— Nancy Lee Grahn (@NancyLeeGrahn) December 4, 2012
Watching @Castle_ABC with you tonight 10EST. 9 CST. @NathanFillion @Stana_Katic @seamusdever @darbystanchfield @JackWagnerhpk. #CastleNLG
— Nancy Lee Grahn (@NancyLeeGrahn) January 8, 2013
@Stana_Katic Our scene was good fun Monday night. Good luck tonight. xo
— Nancy Lee Grahn (@NancyLeeGrahn) January 9, 2013
Congrats to @NathanFillion for being the choice of the people and me. Clearly his better half @Stana_Katic should've won too! Love her!
— Nancy Lee Grahn (@NancyLeeGrahn) January 10, 2013
Yes, Stana and Nathans characters chemistry is palpable and yes they are that charming in person. #castle #realllifewitness
— Nancy Lee Grahn (@NancyLeeGrahn) January 12, 2013
@Stana_Katic Perfect. My backyard needs leveling. Are you free next Thursday?
— Nancy Lee Grahn (@NancyLeeGrahn) March 14, 2013
I couldn't help but notice all the new #Castlefans on my page. You are discerning tv viewers with very good taste. Welcome xo
— Nancy Lee Grahn (@NancyLeeGrahn) January 16, 2013
For more behind the scenes tweets follow Stephanie Drapeau, Darby Stanchfield, Mark Deklin, Victoria Pratt, Jack Wagner, and Nancy Lee Grahn on Twitter.
“LOVE. This from my #Castle fam! THANKS GUYS XO”
“love him!”
“and Stana_Katic not only stunning, but classy, smart & gracious. she gave me the golden horse head as a parting gift.”