Home People John Slattery John Slattery shows John Slattery shows John Slattery TV Shows (31) NEXT (2019) As Paul LeBlanc, He was 57 years old Mrs. America (1969) As Fred Schlafly, Modern Love (2019) As Dennis, He was 57 years old The Romanoffs (2018) He was 56 years old Documentary Now! (2015) He was 53 years old Wet Hot American Summer: First Day of Camp (2015) As Claude Dumet, He was 52 years old Veep (2012) He was 49 years old The Cleveland Show (2009) He was 47 years old Mad Men (2007) He was 44 years old Mad Men (2007) As Roger Sterling, He was 44 years old 30 Rock (2006) He was 44 years old Desperate Housewives (2004) He was 42 years old Jack & Bobby (2004) As Peter Benedict, He was 42 years old Arrested Development (2003) As Doctor Norman, He was 41 years old K Street (2003) As Tommy Flannegan, He was 41 years old Ed (2000) He was 38 years old Judging Amy (1999) He was 37 years old Will & Grace (1998) As Sam Truman, He was 36 years old Maggie (1998) As Dr. Richard Meyers, He was 36 years old From the Earth to the Moon (1998) As Walter Mondale, He was 35 years old Feds (1997) As Michael Mancini, He was 34 years old Ned and Stacey (1995) As Sam, He was 33 years old Homefront (1991) As Al Kahn, He was 29 years old Under Cover (1991) As John Slattery, He was 28 years old Law & Order (1990) He was 28 years old Law & Order (1990) As Dr. Richard Shipman, He was 28 years old The Simpsons (1989) He was 27 years old Father Dowling Mysteries (1989) As Doug, He was 26 years old The Dirty Dozen (1988) As Pvt. Dylan Leeds, He was 25 years old China Beach (1988) He was 25 years old Saturday Night Live (1975) He was 13 years old
