[1] Klebba runs a nonprofit foundation called Coalition for Dwarf Advocacy, which gives 100% of its donations to the cause of helping little people.

He has numerous stunt credits as well including Hancock, Zombieland, Bedtime Stories, Evan Almighty, Meet the Spartans, Epic Movie, and Van Helsing.

Wearing motion capture pajamas, "Marty" stood in for the Dimorphodon who grapples with Chris Pratt in Jurassic World.

Klebba has also been featured on the TLC reality show, Little People, Big World, with his good friend Amy Roloff.

Klebba appears as the "New Year Baby" in the music video for "Truth" by the South African rock band, Seether.