Featured Alumni of Marki Costello's Become A Host Classes!


When you see Hosts/Personalities on television, there's a good chance the Host/Personality you're watching has crossed paths with Marki Costello -- whether they've attended one of her monthly boot camps, studied weekly in her ongoing classes or worked with her one-on-one in a private coaching session. With the industry changing so rapidly and Marki being the only one who can keep up, even the Brad Pitts of the world need a brush up every now and then! 

From brand and network consults, to network Talent coaching, to overall on-camera training, Marki does it all.






Network Consults & TV Show Talent Coaching
Corporate Brand Consulting/Coaching
Roxy, Professional Surf Team
The Mighty Company, Jessie Willner
Truthdig, Zuade Kaufman (Publisher)
Talent Coaching for Network Shows:
Tim Tebow - NFL Quarterback
- Coached for FOX Television show.
- Coached, managed and guided his career to E! News. 
Ceelo Green Recording Artist, The Voice (NBC)
- On-Camera coaching for Fuse music show.
Morgan Stewart - Rich Kids of Beverly Hills (E!), Boobs & Loubs
-  On-Camera coaching for E!'s Facebook Live.
Michael Yo - Actor, Host, Hollywood Expert and Stand-up Comedian. The Insider (CBS), Yo Show (Yahoo! TV)
- Coached and guided his career to on-camera host work.
Natasha Curry - Showbiz Tonight (HLN) 
- Coached and guided her career to on-air correspondent work on HLN (Natasha interviews Marki on Showbiz Tonight)
Phil Keoghan - The Amazing Race (CBS)
 - Coached, managed and guided his career to The Amazing Race.
On-Camera coaching for Good Work (E!)
Audrina Patridge1st Look (NBC), The Hills (MTV)
- Coached and guided career to 1st Look (NBC).
Sabrina Chakici - E! UK Host
Brandon BroadyThe Xperiment (BET)
- On-Camera coaching for The Xperiment (BET)
Nicole Dabeau The Buzzer (FOX Sports Digital), Red Bull Series (FOX Sports 1), Awesome Adventures (Syndicated - Emmy nom) 
- Coached, managed and guided her career to network and digital host work.
Rossi Morreale - Halloween Wars (Food Network), American Airgunner (Pursuit Channel), Dating in the Dark (ABC), Can You Duet (CMT)
Coached, managed and guided his career to network and digital host work.
Andrea Feczko - Vacation Creation (CW), 100 Best Places (TV Land), The QYOU (QYOU TV, Sr. Producer/Host). Vacation Chasers (HLN), ULTRA Music Festivals (UMF TV)
- Coached, managed and guided career to network, digital and live host work.
Ethan Erickson - Melrose Place (CW), Extra TV (NBC)
- Coached, manged and guided his career to network and digital host work.
Erika Schaefer Ross - E! News Now (eonline), Young Hollywood (YH Network), AXN Avenue (AXN Japan)
- Coached, managed and guided her career to network and digital host work.
Alex Rodriguez - On Camera Coaching for The Today Show 
Overall On-Camera Coaching & Brand Consults
Karlie Kloss - Fashion Model, Victoria's Secret Angel
Carrie Ann Inaba - The Talk Host, Dancing With The Stars

Rosie MercadoCo host on Face The Truth

Eric André Stand-up Comedian, Adult Swim, Comedy Central, Howard Stern
Whitney Cummings Comedian, Punk’d (MTV), Friar’s Roast (Comedy Central)
Kelly OsbourneFashion Police (E!), Dancing With The Stars (ABC)
Jeannie Mai – How Do I Look (Style), Extra TV (NBC)
Bill Rancic - We Mean Business (A&E), The Apprentice (NBC) 
Dr. Lisa Masterson - The Doctors (syndicated)
Carissa Loethen Culiner E! News Now (eonline - Host & Blogger)
Karrueche Tran - TV Personality & Model
Tai Beauchamp - Window Warriors (GSN), Special Correspondent for E! News
Travis DesLaurier - Social Media Expert & Influencer (IG: @travbeachboy)
Damona Hoffman - Dating & Relationship Expert, #BlackLove (FYI) & new untitled FYI show
Aaron KirmanCNBC Personality, Mega Real Estate Agent & Expert
Sarah Herron - The Bachelor, Bachelor in Paradise (ABC)
Sasha Perl-Raver - FX Movie Download
Brandy NorwoodRecording Artist & Actress
Lance BassRecording Artist, N'Sync
Doug Reinhardt - The Hills (MTV) 
Dr Robert Rey Dr. 90210 (E!)
Chad Rogers Million Dollar Listing (Bravo)
Jenny Mollen BiggsChelsea Lately, Chelsea & Chelsea Does (E!, Netflix), After Paradise (ABC); TV Actress
Xixi Yang - TV Host & Blogger
Lawrence Longo - Founder and CEO of Off The Menu (@offthemenu)
Charlie TraversHollywood Medium (E!)

Erika Cobb - Daily Blast Live (nationally syndicated live show)

Sam Schacher - Daily Blast Live (nationally syndicated live show)

Bianca Jade - TV Host, Fitness Trend Expert & Founder of Mizzfit.com

Gretchen RossiReal Housewives of OC (Bravo) 
Slade SmileyReal Housewives of OC (Bravo)
Hank Baskett and Kendra Wilkinson - Kendra On Top, Marriage Boot Camp (WE TV)
Andrea Schroeder - Top Design (Bravo)
Stacy Keibler Actress, Retired Professional Wrestler
Josh McBride - Entertainment Host & Lifestyle Expert
Alex Curry Angels Weekly (Fox Sports)
Chris Balish - On the Red Carpet (KABC-TV LA)
Angela Sun Documentary Host
Tony HortonBeach Body and P90x
Brian Corsetti Garage Mahal (DIY Network)
Madison Hildebrand - Million Dollar Listing (Bravo)
Cari Champion - Reporter for Tennis Channel
Overall On-Camera Coaching (cont'd)
Brett Hoebel Fitness Trainer,  The Biggest Loser (NBC)
Bobbie ThomasLifestyle Expert, Today Show (NBC)
Evelyn Lozada - Basketball Wives (VH1)
Brad Gerlach - Professional Surfer, World Surf League
Arto Saari - Professional Skateboarder & Photographer 
Richard JoelCreator and Producer on CW's "Oh Sit"
Larissa WohlE! News Now (eonline)
Crystal Marie Denha - Host on Hollyscoop TV,  What The F*** Facts, & Sports Contributor for Captain Wag
Grae Drake - Senior Editor at Rotten Tomatoes
Stephanie BauerHost on Hollyscoop TV, Oxygen, OWN, Lifetime, AOL, Yahoo, Tru TV
Rebecca PrinceHost/Reporter, Hollyscoop TV, WireImage, Dime of the Month (Snoop's new channel)
Taryn Brooks Movie Surfers (Disney XD), Style Correspondant on Cambio
Stuart BrazellThe Insider (CBS), Dirty and Thirty (CW)
Joanna KrupaReal Housewives of Miami (Bravo)
Elisabetta CanalisInternational Spokesmodel
Michele Merkin - Party Monsters (E!), Live and Loud (VH1)
Nick Zano2 Broke Girls (CBS)
Hope Dworaczyk Celebrity Apprentice (NBC)
D Squared Fashion Designers
Badgley Mischka - Fashion Designers
Heidi AndrolNHL Network & Fox Sports West
Keir Dillon - XGames.com
Teck Holmes - Real World Fame, Hole in the Wall! (FOX)
Jenn Brown - Inside the NFL (Showtime)
Ryan Brown Flipping Out (Bravo)
Bruce BufferUFC
Chelsea Cannell That Morning Show (E!)
Arriany CelesteUFC
David Chokachi Baywatch
Chelsea Briggs - Billboard News
Brandon London - Morning Dose (syndicated talk show), Former athlete (NY Giants)
Candice Kumai - Chef, Food Blogger. Cook Yourself Thin (Lifetime), Iron Chef America (Food Network)
Jeremy Jackson - Baywatch
Sandra Sanchez - The Morning Show (E!)
Samantha Shacher - Gamer Life
James Bawden - DIY Expert (Australian Host)
Sabrina Cofield - Actress, Host. Studied with Marki for NBC's Diversity Hosting Program.
Mollie King - The Saturdays (multi-platinum selling UK girl group), E!'s Chasing The Saturdays

Annabelle DeSisto - Podcaster - Adderall and Compliments

Heather Gardner - Host on Yahoo!