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John C. Reilly (Dr. Steve Brule) leads the Check It Out! with Dr. Steve Brule cast as the #2,846 ranked actor globally. Cast members below include current popularity rankings where available.
December 13, 2025

Top 10 Cast Members

Ranked by Wikipedia pageviews on December 12, 2025
#1
John C. Reillyas Dr. Steve Brule
Rank #2,8461,994 daily views
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#2
Maria Bamfordas Cynthia Driscoll
Rank #4,8981,163 daily views
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#3
Kevin Lee
Rank #14,340228 daily views
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#4
David Falkas Self
Rank #18,143132 daily views
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#5
Tiny Ronas God
Rank #18,780121 daily views
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#6
Eric Ramsey
Rank #22,11776 daily views
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#7
David Liebe Hartas Self
Rank #24,69152 daily views
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#8
Kenny Alexander
Rank #27,39234 daily views
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#9
Oberon Zellas Self
Rank #28,12330 daily views
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#10
Fabian Alomaras Inmate
Rank #28,12330 daily views
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Check It Out! with Dr. Steve Brule Full Cast

All 154 cast members with rankings based on Wikipedia pageviews
JR
John C. Reilly
as Dr. Steve Brule · 24 eps
Rank #2,8461,994 daily views

John C. Reilly plays Dr. Steve Brule, an unusual and often confused doctor exploring everyday subjects.

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AW
Atsushi Watanabe
as Sushi Chef · 1 ep
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JB
Jonny Bowden
as Self · 1 ep

Jonny Bowden appears as himself, contributing his expertise on nutrition.

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RD
Rod Davis
1 ep
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WH
William Holt
1 ep
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JL
Jose G. Lopez
as Janitor · 1 ep

Jose G. Lopez plays the Janitor, a character who interacts with Dr. Steve Brule in various episodes.

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JO
Julie O'Brien
1 ep
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GS
Gloria Sandoval
1 ep
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KS
Karon Stocking
1 ep
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JY
Joji Yokoe
1 ep
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DD
Don Davis
as Self · 1 ep

Don Davis appears as himself, bringing his music knowledge to the show.

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MB
Maria Bamford
as Cynthia Driscoll · 1 ep
Rank #4,8981,163 daily views

Maria Bamford plays Cynthia Driscoll, a character who often crosses paths with Dr. Brule.

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BE
Bruce Eason
1 ep
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IH
Ian Halstein
1 ep
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NM
Nickolay Maleko
1 ep
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MM
Melissa Manning
1 ep
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LV
Liz Valente
1 ep
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BB
Bob Baker
as Self · 1 ep
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SC
Scotty Castillo
1 ep
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UH
Ursula Heinle
as Self · 1 ep
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SS
Sandy Sanders
as Self · 1 ep
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SG
Stephan D. Gill
as Steve Davis · 1 ep
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AE
Ann J. Elkin
as Dr. Davis · 1 ep
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EB
Elaine Ballace
1 ep
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CB
Charles Bone
1 ep
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SC
Susan Cottrell
1 ep
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ED
Edward Diggsby
1 ep
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MF
Manuel Fierro
1 ep
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HF
Hunter Fox
1 ep
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SJ
Sandy Jeanphilippe
1 ep
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FL
Fermin Lagunas
1 ep
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KL
Kenny Lopez
1 ep
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MM
Mark Malan
1 ep
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DM
David Markey
1 ep
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CM
Charles Matula
1 ep
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DM
Dwayne Mosco
1 ep
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WR
Wora Rapp
1 ep
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JR
Jacinta Robert
1 ep
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HR
Herman Rogue
1 ep
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BS
Brent Sweet
1 ep
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IT
Irma Thorn
1 ep
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TR
Tiny Ron
as God · 1 ep
Rank #18,780121 daily views
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BV
Brian Ventimiglia
1 ep
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CV
Charles Villano
1 ep
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SW
Scott Wisman
1 ep
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YY
Yasmin Yas
1 ep
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GL
Gary Lecroix
as Self · 1 ep
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RR
Ronnie Rodriguez
as Self · 1 ep
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DA
Dayna Allen
1 ep
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LE
Linda Eaton
1 ep
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CE
Charles Erickson
1 ep
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RF
Regan Forston
1 ep
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PW
Purita Wattanakulchotikarn
as Self · 1 ep
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RB
Ronald Barker
as Self · 1 ep
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PH
Paulette Hunnewell
1 ep
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AN
Anthony Nguyen
1 ep
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MS
Mauricio Solis
as Goon · 1 ep
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JZ
Joe Zacharia
1 ep
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DF
David Falk
as Self · 1 ep
Rank #18,143132 daily views
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DJ
David Jurasevich
as Self · 1 ep
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MF
Martin Faigin
1 ep
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JM
Jolie Mason
1 ep
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AP
Amy Porter
1 ep
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SR
Sean Roach
as Self · 1 ep
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KA
Kelyan Ayachi
1 ep
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AB
Aykut Bayrak
as Self · 1 ep
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RK
Rob Karlin
1 ep
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SS
Sherri Smith
as Fertility clinic nurse · 1 ep
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LT
LeRoy Thompson
1 ep
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DR
Donna Rusch
as Linda Barrelli · 1 ep
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AM
Amy Moorman
1 ep
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DV
Darcy Vernier
1 ep
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RP
Reuban Piranian
1 ep
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DH
Daniel M. Hooper
1 ep
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LS
Lydia Sims
1 ep
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DI
Diamond
1 ep
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OZ
Oberon Zell
as Self · 1 ep
Rank #28,12330 daily views
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MJ
Michael O'Garro Jr.
1 ep
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KL
Kevin Lee
1 ep
Rank #14,340228 daily views
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DR
Darin Rossi
1 ep
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IO
Irving Orozco
as Self · 1 ep
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CS
Cheryl A. Smith
as Self · 1 ep
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RW
Rolando W. Wolovich
as Self · 1 ep
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BJ
Bryan Heard Jr.
1 ep
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LL
Laine Lasanta
1 ep
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RR
Rhoen Reddy
1 ep
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RW
Ryce Waker
1 ep
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DA
David N. Alexander
1 ep
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AD
Adora Dei
as Doctor · 1 ep
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GH
Gwen Holloway
as ER Doctor · 1 ep
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LM
Lindsay McGrail
as ER Nurse · 1 ep
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JM
June Mock
as Doctor · 1 ep
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EM
Ernest L. Moore
1 ep
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BR
Bob Raynor
as Uncle Gary · 2 eps
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RV
Ron Don Volante
as Self · 4 eps
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BJ
Bobby Javinett
1 ep
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AM
Andy Mardrosian
1 ep
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FV
Frank Vargas
1 ep
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CD
Christine Dupree
as Girl in Dream · 1 ep
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SK
Sophiah Koikas
as Girl in Dream · 1 ep
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