After moving to Los Angeles in 1997, Sickler began touring nationally as an mprov regular, sharing the mic with the likes of Pablo Francisco, Bobby Slayton, Tracy Morgan, David Spade, and Damon Wayans. He has performed on The Late Late Show with Craig Ferguson and can be seen on Comedy Central's "Live at Gotham."
Sickler began honing his acting skills with famed sketch comedy troupe, The Groundlings.
When not working as a comic, Sickler continues to write and film projects. He is currently featured in several shows on E! and can be seen starring in Cutman, a pilot he co-wrote with writing partner, Tom Segura.