In honor of Administrative Professionals' Day on Wednesday, see some of our favorites, ahead.

The Most Memorable TV Assistants

NBC; Nicole Rivelli/NBC; AMC; NBC; Chris Haston/NBCU Photo Bank

Kenneth Parcell (Jack McBrayer), 30 Rock

Nicole Rivelli/NBC

Peggy Olson (Elisabeth Moss), Mad Men

AMC

Tag Jones (Eddie Cahill), Friends

NBC

Mrs. Landingham (Kathryn Joosten), The West Wing

NBC

Karen Walker (Megan Mullally), Will & Grace

Chris Haston/NBCU Photo Bank

Jennifer Marlowe (Loni Anderson), WKRP in Cincinnati

Courtesy Everett Collection

Beth (Vicki Lewis), NewsRadio

Alan Levenson/NBCU Photo Bank

Pam (Jenna Fischer), The Office

Chris Haston/NBC

John Hooker (Ryan Cartwright), Mad Men

Carin Baer/AMC

Jane Hathaway (Nancy Kulp), The Beverly Hillbillies

Courtesy Everett Collection

Kitty (Judy Greer), Arrested Development

Sam Urdank for Netflix

Carol Kester (Marcia Wallace), The Bob Newhart Show

Courtesy Everett Collection

Megan Draper (Jessica Paré), Mad Men

Michael Yarish/AMC

Charlie Young (Dule Hill), The West Wing

Michael O’Neil/NBC/NBCU Photo Bank

Waylon Smithers (Harry Shearer), The Simpsons

FOX

April Ludgate (Aubrey Plaza), Parks and Recreation

Colleen Hayes/NBC

Lloyd Lee (Rex Lee), Entourage

Claudette Barius/HBO

Donna Moss (Janel Moloney), The West Wing

Michael O’Neil/NBC/NBCU Photo Bank