Jon Hamm and Mason Vale Cotton in Mad Men (2007)

Teri Hatcher and Mason Vale Cotton in Desperate Housewives (2004)

Mason Vale Cotton at an event for The 67th Primetime Emmy Awards (2015)

Kiernan Shipka and Mason Vale Cotton in Mad Men (2007)

January Jones, Christopher Stanley, Kiernan Shipka, and Mason Vale Cotton in Mad Men (2007)

January Jones, Christopher Stanley, Kiernan Shipka, Mason Vale Cotton, and Evan Londo in Mad Men (2007)

January Jones, Jon Hamm, and Mason Vale Cotton in Mad Men (2007)

January Jones, Jessica Paré, Christopher Stanley, Mickey Maxwell, Kiernan Shipka, Mason Vale Cotton, Ryder Londo, and Alexander Michael Helisek in Mad Men (2007)

Jessica Paré, Kiernan Shipka, Mason Vale Cotton, and Ryder Londo in Mad Men (2007)

January Jones, Jon Hamm, Jessica Paré, Christopher Stanley, Kiernan Shipka, Mason Vale Cotton, and Evan Londo in Mad Men (2007)

Jon Hamm, Kiernan Shipka, Mason Vale Cotton, and Evan Londo in Mad Men (2007)

Jon Hamm, Jessica Paré, Mason Vale Cotton, and Evan Londo in Mad Men (2007)

Mason Vale Cotton in Desperate Housewives (2004)

Teri Hatcher, Vanessa Williams, and Mason Vale Cotton in Desperate Housewives (2004)

January Jones, Jessica Paré, Kiernan Shipka, Mason Vale Cotton, and Evan Londo in Mad Men (2007)

Mason Vale Cotton at an event for The 66th Primetime Emmy Awards (2014)

Kate Reinders, David Milchard, Jesse Reid, Mason Vale Cotton, Kaitlyn Maher, Sean Giambrone, Steve Richmond, and Mckenna Grace in Russell Madness (2015)