Name	Known for
Jim Gaffigan Jim Gaffigan Jim Gaffigan See fewer	Chappaquiddick (2017)
Ashley Williams Jeannie Gaffigan Jeannie Gaffigan See fewer	How I Met Your Mother (2005)
Michael Ian Black Daniel Daniel See fewer	Wet Hot American Summer (2001)
Caitlin Moeller Elizabeth Elizabeth See fewer	The Jim Gaffigan Show (2015)
Adam Goldberg Dave Dave See fewer	A Beautiful Mind (2001)
Wolfgang Jackson Lacz James James See fewer	The Jim Gaffigan Show (2015)
Cameron Seely Mary Mary See fewer	The Grinch (2018)
Tongayi Chirisa Father Nicholas Father Nicholas See fewer	The Jim Gaffigan Show (2015)
Macaulay Culkin Macaulay Culkin Macaulay Culkin See fewer	Home Alone (1990)
Jerry Seinfeld Jerry Seinfeld Jerry Seinfeld See fewer	Seinfeld (1989)
Racquel Palmer Angry Woman (as Raquel Bailey) Angry Woman (as Raquel Bailey) See fewer	FBI (2018)
Timothy Dolan Bartender (as Cardinal Timothy M. Dolan) Bartender (as Cardinal Timothy M. Dolan) See fewer	The Jim Gaffigan Show (2015)
Aidan Doran Teenage Jim (as Aidan John Doran) Teenage Jim (as Aidan John Doran) See fewer	100 Planes (2016)
Dan Entriken Priest Priest See fewer	The Blacklist (2013)
Melissa Errico Gloria Gloria See fewer	Billions (2016)
Jeannie Gaffigan Jeannie's Mom Jeannie's Mom See fewer	The Jim Gaffigan Show (2015)
Barry Godin St. Peter (as Barry D. Godin) St. Peter (as Barry D. Godin) See fewer	Law & Order: Special Victims Unit (1999)
Cadden Jones Grace Grace See fewer	FBI: Most Wanted (2020)
Nora Murphy Little Jeannie Little Jeannie See fewer	City on a Hill (2019)
Moses Ntekereze Young Guy Young Guy See fewer	The Penguin (2024)
Graydon Yosowitz Little Daniel Little Daniel See fewer	The Plot Against America (2020)
Mia Amoscato Maggie Gaffigan Maggie Gaffigan See fewer	The Sisters Kardos (2022)
William Gyarfas Corrections Officer #2 Corrections Officer #2 See fewer	The Tomorrow People (2013)
Joe Lenihan Teen Jim's Older Brother (uncredited) Teen Jim's Older Brother (uncredited) See fewer	Or So the Story Goes (2013)