Mark Derwin (born October 28, 1960 in Park Forest, Illinois,) is an American television actor currently known for his role as George Juergens on the ABC Family drama The Secret Life of the American Teenager.
Derwin attended the State University of New York at Cobleskill, but was kicked out after one semester. He briefly worked at IBM and held a series of odd jobs before moving to Los Angeles to pursue acting. In the air
After recurring roles on the shows Hardball and Days of our Lives, and a prolific career in commercials (including a notable spot as the "Fiesta" cigarette man in Mexico), Derwin was cast in his first contract role as Adrian Hunter on the daytime soap opera The Young and the Restless. Derwin was on the show from 1989 to 1990, and was featured in a high-profile storyline as a grifter and, ultimately, a murderer.
Derwin's next role was on the long-running soap opera Guiding Light as detective A.C. Mallet. Derwin played the character from 1990 to 1993. During his time on Guiding Light, the role of Mallet became a leading character. Derwin became romantically involved with costar Beth Ehlers during his stint at GL; the couple decided to leave the show together in 1993. (Derwin and Ehlers subsequently broke up.)
Derwin returned to daytime television in the role of Dr. Ben Davidson on the ABC soap opera One Life to Live (1999-2002, 2004, 2008). He was again paired in a high profile leading role, this time as the love interest of the show's star, Erika Slezak. His character was eventually revealed to be the son of show patriarch Asa Buchanan.
Derwin co-starred alongside Bonnie Hunt in the non-traditional primetime sitcom, Life with Bonnie, which was partly improvised. He recently was seen in the teen comedy Accepted (2006), playing the father of protagonist Bartleby Gaines (played by Justin Long).
In 2006 he was seen on How I Met Your Mother, playing Greg. Currently, Derwin plays George Juergens on The Secret Life of the American Teenager. He had a recurring role on season 7 of 24 as "Joe", an adviser to President Allison Taylor (played by Cherry Jones).