<P> Bratton began to pursue an acting career in 1979 . He has appeared in films such as Mask and Heart Like a Wheel . He was a cast member (playing a fictional version of himself) on NBC's Emmy and SAG award - winning The Office . In the "Booze Cruise" episode (Season Two deleted scenes DVD) he speaks about his time with the Grass Roots . </P> <P> In 2008, he appeared in a short film with Kyle Gass titled Just One Of The Gynos, which won an award for best short film at the 2008 Malibu International Film Festival . He appeared in the feature film Labor Pains in 2009 . His recent film projects are The Ghastly Love of Johnny X, written, produced and directed by Paul Bunnell; I Am Ben, written, produced and directed by Mathew Brady and Gaelan Connell; and Terri produced by David Guy Levy . Terri was selected by the Sundance Film Festival 2011 to appear in the US dramatic competition . It was one of only 16 films selected from 1,102 submissions to the US dramatic category . In 2012, he appeared as special guest star in Staged with Brandon Olive who appeared with him in Just One Of The Gynos . Bratton's latest film project is Saving Lincoln, a biography set in the civil war period . </P> <Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Notes </Th> </Tr> <Tr> <Td> 1967--1969 </Td> <Td> American Bandstand </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 1967 </Td> <Td> The Hollywood Palace </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 1968 </Td> <Td> With Six You Get Eggroll </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 1968--1969 </Td> <Td> It's Happening </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 1969 </Td> <Td> Playboy After Dark </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Kolchak: The Night Stalker </Td> <Td> Man Entering Lab </Td> <Td> Episode "Primal Scream" </Td> </Tr> <Tr> <Td> 1977 </Td> <Td> Quincy M.E. </Td> <Td> Young Man </Td> <Td> Episode "No Deadly Secret" </Td> </Tr> <Tr> <Td> 1977 </Td> <Td> Eight is Enough </Td> <Td> </Td> <Td> Episode "Mortgage Burnin' Blues" </Td> </Tr> <Tr> <Td> </Td> <Td> Heart Like a Wheel </Td> <Td> Photographer </Td> <Td> </Td> </Tr> <Tr> <Td> 1985 </Td> <Td> Mask </Td> <Td> Carnival Ticket Taker </Td> <Td> </Td> </Tr> <Tr> <Td> 1986 </Td> <Td> A Fighting Choice </Td> <Td> Court Clerk </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> U.S. Marshals: Waco & Rhinehart </Td> <Td> Agent Jones </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> The Wild Pair </Td> <Td> Dalton </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Seven Hours To Judgement </Td> <Td> Subway Worker </Td> <Td> </Td> </Tr> <Tr> <Td> 1991 </Td> <Td> Neon City </Td> <Td> Guard at Neon </Td> <Td> He was also a grip </Td> </Tr> <Tr> <Td> </Td> <Td> Secret Sins Of The Father </Td> <Td> Gas Station Worker </Td> <Td> </Td> </Tr> <Tr> <Td> 2005 </Td> <Td> The War Of Gene </Td> <Td> Captain Clark </Td> <Td> </Td> </Tr> <Tr> <Td> 2005--2013 </Td> <Td> The Office </Td> <Td> Creed Bratton (fictitious version of himself) </Td> <Td> </Td> </Tr> <Tr> <Td> 2006 </Td> <Td> The Bernie Mac Show </Td> <Td> Funeral Home Employee </Td> <Td> Episode "Bernie's Angels" </Td> </Tr> <Tr> <Td> 2006 </Td> <Td> The Manual </Td> <Td> Major . Edwards </Td> <Td> </Td> </Tr> <Tr> <Td> 2007--2008 </Td> <Td> Today </Td> <Td> Himself </Td> <Td> Episodes dated 10 / 26 / 07, 6 / 24 / 08 </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> Just One Of The Gynos </Td> <Td> Dr. Gus Callery </Td> <Td> </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> 6th Annual TV Land Awards </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 2008 </Td> <Td> Celebrity Family Feud </Td> <Td> Himself </Td> <Td> </Td> </Tr> <Tr> <Td> 2009 </Td> <Td> Labor Pains </Td> <Td> John Abbotts </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> In Gayle We Trust </Td> <Td> Denny Potter </Td> <Td> Two episodes </Td> </Tr> <Tr> <Td> </Td> <Td> Funny or Die Presents </Td> <Td> Himself </Td> <Td> Four episodes </Td> </Tr> <Tr> <Td> </Td> <Td> The Forgotten </Td> <Td> Guy </Td> <Td> Episode "Double Doe" </Td> </Tr> <Tr> <Td> 2012 </Td> <Td> The Ghastly Love of Johnny X </Td> <Td> Mickey O'Flynn (the Man with the Grin) </Td> <Td> </Td> </Tr> <Tr> <Td> 2012 </Td> <Td> Liz & Dick </Td> <Td> Darryl Zanuck </Td> <Td> TV movie </Td> </Tr> <Tr> <Td> 2011 </Td> <Td> I Am Ben </Td> <Td> Dr. Cobb </Td> <Td> </Td> </Tr> <Tr> <Td> 2011 </Td> <Td> Terri </Td> <Td> Uncle James </Td> <Td> </Td> </Tr> <Tr> <Td> 2013 </Td> <Td> Saving Lincoln </Td> <Td> Senator Charles Sumner </Td> <Td> </Td> </Tr> <Tr> <Td> 2014 </Td> <Td> Adventure Time </Td> <Td> Phlannel Boxingday </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> Comedy Bang! Bang! </Td> <Td> Grandfather </Td> <Td> Episode: "Ty Burrell Wears a Chambray Shirt & Clear Frame Glasses" </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> Grace and Frankie </Td> <Td> Seth </Td> <Td> Episode: "The Bachelor Party" </Td> </Tr> <Tr> <Td> 2015 </Td> <Td> Band of Robbers </Td> <Td> Dobbins </Td> <Td> </Td> </Tr> <Tr> <Td> 2018 </Td> <Td> The Sisters Brothers </Td> <Td> Quarrel Saloon Guy Town 2 </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Role </Th> <Th> Notes </Th> </Tr>

Who did creed bratton play in adventure time