Markus Flanagan (born August 20, 1964) is an American actor.
In 1990, he starred in the short-lived ABC police drama Sunset Beat alongside George Clooney, Michael Deluise and Erik King.
Flanagan co-starred in the Nickelodeon series Unfabulous as Jeff Singer, the father of Emma Roberts' character, from 2004 to 2007.
He also had recurring roles as Harry Dean on Fox's Melrose Place, as Mark on the Peabody award-winning show Better Things, and from 2019 - 2023 as Gerald Drummond on the Apple TV+ series The Morning Show.
He has appeared in over 125 television episodes with roles on; Friends, CSI, CSI Miami, NCIS, Major Crimes, Bones, Agents of S.H.I.E.L.D., Will & Grace, Seinfeld, Veronica's Closet, The Morning Show and many others.