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Who Do You Think You Are? (US)

(a Guest Stars & Air Dates Guide)

Last updated: Tue, 31 Mar 2026 17:00
Show Logo
Celebrities learn about their family history.
Show Details:
Start date: Mar 2010
End date: Aug 2022
Status: cancelled/ended
Network(s): NBC (US) / TLC (US)
Run time: 60 min
Episodes: 84 eps
Genre(s): Miscellaneous
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Episode list & details from:  TVmaze •  TV.com
Episode # Original
Air Date		 Guests
 
Season 1
1.1-1 05 Mar 10Sarah Jessica Parker
2.1-2 12 Mar 10Emmitt Smith
3.1-3 19 Mar 10Lisa Kudrow
4.1-4 26 Mar 10Matthew Broderick
5.1-5 02 Apr 10Brooke Shields
6.1-6 23 Apr 10Susan Sarandon
7.1-7 30 Apr 10Spike Lee
Season 2
8.2-1 04 Feb 11Vanessa Williams
9.2-2 11 Feb 11Tim McGraw
10.2-3 18 Feb 11Rosie O'Donnell
11.2-4 25 Feb 11Kim Cattrall
12.2-5 04 Mar 11Lionel Richie
13.2-6 25 Mar 11Steve Buscemi
14.2-7 01 Apr 11Gwyneth Paltrow
15.2-8 08 Apr 11Ashley Judd
Season 3
16.3-1 03 Feb 12Martin Sheen
17.3-2 10 Feb 12Marisa Tomei
18.3-3 24 Feb 12Blair Underwood
19.3-4 02 Mar 12Reba McEntire
20.3-5 09 Mar 12Jerome Bettis
21.3-6 23 Mar 12Helen Hunt
22.3-7 30 Mar 12Rita Wilson
23.3-8 06 Apr 12Edie Falco
24.3-9 27 Apr 12Rob Lowe
25.3-1004 May 12Rashida Jones
26.3-1111 May 12Jason Sudeikis
27.3-1218 May 12Paula Deen
Season 4
28.4-1 23 Jul 13Kelly Clarkson
29.4-2 30 Jul 13Christina Applegate
30.4-3 06 Aug 13Chelsea Handler
31.4-4 13 Aug 13Zooey Deschanel
32.4-5 20 Aug 13Chris O'Donnell
33.4-6 27 Aug 13Cindy Crawford
34.4-7 03 Sep 13Trisha Yearwood
35.4-8 10 Sep 13Jim Parsons
Season 5
36.5-1 23 Jul 14Cynthia Nixon
37.5-2 30 Jul 14Jesse Tyler Ferguson
38.5-3 06 Aug 14Rachel McAdams
39.5-4 13 Aug 14Valerie Bertinelli
40.5-5 20 Aug 14Kelsey Grammer
41.5-6 08 Mar 15Julie Chen
42.5-7 15 Mar 15Josh Groban
43.5-8 22 Mar 15Angie Harmon
44.5-9 29 Mar 15Sean Hayes
45.5-1005 Apr 15Tony Goldwyn
46.5-1112 Apr 15America Ferrera
47.5-1219 Apr 15Bill Paxton
48.5-1326 Apr 15Melissa Etheridge
Season 6
49.6-1 26 Jul 15Ginnifer Goodwin
50.6-2 02 Aug 15J.K. Rowling
51.6-3 09 Aug 15Alfre Woodard
52.6-4 16 Aug 15Into The Archives
53.6-5 23 Aug 15Bryan Cranston
54.6-6 30 Aug 15Tom Bergeron
Season 7
55.7-1 03 Apr 16Aisha Tyler
56.7-2 10 Apr 16Scott Foley
57.7-3 17 Apr 16Katey Sagal
58.7-4 24 Apr 16Molly Ringwald
59.7-5 01 May 16Chris Noth
60.7-6 01 May 16Lea Michele
Season 8
61.8-1 05 Mar 17Courteney Cox (62 min)
62.8-2 12 Mar 17Julie Bowen
63.8-3 19 Mar 17Jennifer Grey
64.8-4 26 Mar 17Noah Wyle
65.8-5 02 Apr 17Jessica Biel
66.8-6 09 Apr 17Smokey Robinson
67.8-7 16 Apr 17John Stamos
68.8-8 24 Apr 17Liv Tyler
Season 9
69.9-1 21 May 18Jon Cryer
70.9-2 21 May 18Laverne Cox
71.9-3 28 May 18Megan Mullally
72.9-4 04 Jun 18Hilary Duff
73.9-5 11 Jun 18Molly Shannon
74.9-6 18 Jun 18Jean Smart
Season 10
75.10-103 Dec 18Mandy Moore
76.10-210 Dec 18Josh Duhamel
77.10-317 Dec 18Matthew Morrison
78.10-417 Dec 18Regina King
Season 11
79.11-110 Jul 22Billy Porter
80.11-217 Jul 22Nick Offerman
81.11-324 Jul 22Allison Janney
82.11-431 Jul 22Zachary Levi
83.11-507 Aug 22Bradley Whitford
84.11-614 Aug 22Zachary Quinto
 
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