In Jack's play "Glengarry Glen Ross," Jack plays Blake. The character of Blake is not in the play; he is only in the movie version.
In Jack's play, he plays the character "Blake," portrayed by Alec Baldwin in "Glengarry Glen Ross." Alec Baldwin was a main player in Tina Fey's "30 Rock."
John Slattery appeared with Tina Fey in the television series 30 Rock (2006-2013), in season 5, episode 7, entitled Brooklyn Without Limits.
In both of Tina Fey-created, "30 Rock" and "Unbreakable Kimmy Schmidt," there are multiple references to the show "Mad Men." John Slattery was a main player in "Mad Men"; he played Roger Sterling.
Prologue: "Inspired by personal essays from The New York Times column Modern Love. Certain elements have been fictionalized."