Rogger Lopez


Rogger is the chief operating officer at Sierra/Tango Productions. He migrated from Peru in 1999 and earned his Bachelor degree in Business Administration with a concentration in public accounting. After 3 years of working in the accounting field for Adams & Salter, Rogger decided that it was time to change scenery and moved first into Production Management and then became the chief operation officer of Sierra/Tango. He has worked on No Place On Earth, was the lead producer of Unseen Enemy, and is currently producing Memory Games.


Janet Tobias


Janet started her film and television career at CBS’ 60 Minutes as Diane Sawyer's associate producer. She then worked as a producer at ABC News’ Prime Time Live, as the editorial producer for ABC’s legal and criminal justice coverage, a national producer at Dateline NBC, and an executive producer at VNI (which became New York Times Television). After working at the networks, she moved to PBS where she produced and directed an award winning four hour joint Frontline/Nightline project on the juvenile justice system in California, and executive produced the Emmy award winning PBS Life 360. In 2001, she co-founded Sierra/Tango Productions, which has produced over 20 films on subjects ranging from 13-year-old girls to US veterans returning from war. No Place On Earth, marked her debut as a theatrical director. Unseen Enemy and Memory Games are her latest films. Besides the Emmy, her awards include two American Bar Association silver gavel awards, a George Foster Peabody Award, 2 Cine Golden Eagles, 2 Casey medals for meritorious journalism, a National Headliner Award, a Sigma Delta Chi Award, and honorable mention Robert F. Kennedy Journalism and Overseas Press awards. In 2013, she was nominated for a writer’s guild for No Place On Earth.


Veronica Aronova


Veronica is a filmmaker from NYC. A first generation New Yorker from a Russian family, she graduated from McGill University with a BA in Political Science. Her first love is for foreign languages and now she speaks five: Russian, French, Spanish, English and Portuguese. Her second love is for storytelling and in 2017, she worked on a documentary about the US-Mexico border that argues that the cultural trope of the border as a line in the sand is an impossible one. She joined Sierra/Tango in April 2018. 


Zac Nicholson


Zac is a filmmaker from New York City and a graduate of NYU's Tisch School of the Arts. For the last ten years, Zac has been telling stories across narrative, documentary, commercial and interactive media/performance realms with a fluid visual and character-driven perspective that distinguishes his work. He has been a frequent collaborator with Janet Tobias, beginning with the award-winning documentary No Place On Earth (2012) and continuing with Unseen Enemy(2017). He is currently the DOP on Sierra/Tango’s Memory Games.


Marcos Barbery


While still an undergraduate student, Marcos worked as a juvenile caseworker at The Center For Restorative Justice, a nonprofit that contracts with the District Attorney’s office, and provides services to adjudicated youth in state’s custody. This experience propelled him into the master program in journalism and publishing at Harvard, where he committed to a career as an investigative journalist and documentary filmmaker. His writing has appeared in The Los Angeles Times, Salon, The Huffington Post, and This Land Press, among others. The Investigative Fund at the Nation Institute has supported his reporting, and Vice on HBO, The New Yorker, and Long Reads have featured his work. Most recently, he wrote, produced, and directed the feature-length documentary film, By Blood. The film toured the festival circuit, winning “Best Film” at the San Diego Black Film Festival.


Kristin Stoffels


Kristin joined the team in 2016 to work on development of new projects, and now also works as a writer and producer. She is Belgian and speaks fluent French and Dutch in addition to English. Kristin graduated from Artesis – Plantijn college in Antwerp, Belgium with a bachelor Degree in journalism. After working as an intern at VRT, Flemish radio and television, she spent a few months in New York interning for Sierra/Tango Productions. Before joining Sierra/Tango, Kristin spent 6 years working in Belgium as a freelance journalist and writer for various magazines and publications.


Shayon Maitra


Shayon is an editor, director & screenwriter, who graduated from Columbia University’s MFA Film Program. He also holds a BA in Economics from The University of Chicago. Shayon was born in India, and has lived all over the world: Dubai, Hong Kong, Kuala Lumpur, London and Chicago. He is fluent in Bengali, Hindi and English. Prior to filmmaking, Shayon worked in the world of finance. Until he decided to follow his passion for cinema and film. He has directed and edited many short films that have played in festivals across the world.