Koby is best known for his recurring role of Young Marshall in the well-known syndicated sitcom "How I Met Your Mother" and he played Paul Reiser's son, Gabe, in "The Paul Reiser Show". Koby worked alongside his sister Sydney in Ben Stiller's "Greenberg" and has appeared in over 30 national and international commercials and hundreds of print campaigns, for companies such as Disney, Procter and Gamble and H&M. Koby loves sports and excels at everything from football and basketball to water-sports and roller-blading. Koby's team recently won the NFL Flag Football National Championship in his division, which later aired on Nickelodeon. Koby is an animal lover and owns and fosters seven rescue dogs.