Krasinski showed off his enduring bond with his former The Office wife when he posted a selfie on Twitter early Wednesday with Fischer, who had come to see him perform in the Off-Broadway Dry Powder alongside Claire Danes.
"So...this rabid theater fan came to #DryPowder last night!" Krasinski, 36, captioned the photo, which will surely pull at the heart strings of Office fans who've been missing Jim and Pam's adorable chemistry.
FLASHBACK! Behind the Scenes of The Office Wedding!
Fischer, 42, has publicly spoken about the friendship the two have shared telling Watch What Happens Live host Andy Cohen in January: "There's like a real part of me that is Pam, and there's a real part of him that's Jim, and those parts of us were genuinely in love with each other."
Krasinski has been married to actress Emily Blunt, 33, since 2010 and are expecting their second child together. Fischer has been married since 2010 to Lee Kirk, with whom she has daughters Weston Lee, 4, and Harper Marie, 22 months.