Mark C. Collier is best known for his role on the long-running daytime drama As the World Turns. He joined the cast as construction worker Mike Kasnoff on July 2, 2002.

Mark is originally from Ocala, Florida. A graduate of Georgia Southern University, he landed his first role on NBC?s Sunset Beach. Since then, his television credits include Beverly Hills, 90210 and Arrest and Trial. In addition, the actor starred in films such as Pissing and Moaning, Everytime the Dogs Bark and Loop. He has appeared in theatrical productions of Lovers and Strangers, Lone Star, Children?s Crusade and Six Degrees of Separation