Mark Alan Ruffalo, rođen 22. novembra 1967. godine je američki glumac, reditelj, producent i scenarista. Glumio je u ostvarenjima: “Eternal Sunshine of the Spotless Mind”, “Zodiac”, “Shutter Island”, “Just Like Heaven”, “Collateral”, “You Can Count on Me”, “The Avengers” i u “The Kids Are All Right” za koji je nominovan za Oskara za najboljeg sporednog glumca.
Ruffalo je rođen u Kenosha-iju u Wisconsin-u. Majka, Marie Rose, je stilista i frizer, a otac Frank Lawrence Ruffalo je radio kao moler. Ima italijansko poreklo, ali i francusko – kanadsko. Diplomirao je na First Colonial High School, da bi se kasnije preseliu sa porodicom u San Diego i posle toga u Los Anđeles.
Od juna 2000. godine je oženjen francusko-američkom glumicom Sunrise Coigney i imaju troje dece. 2002. godine mu je dijagnostikovana vrsta tumora na mozgu i operisan je, ali je imao i delimičnu paralizu lica. Potpuno se oporavio od toga i vratio se svojoj filmskoj karijeri.
Filmografija:
1994 Due South Vinnie Webber
1996 The Last Big Thing Brent Benedict
The Dentist Steve Landers
1997 On the 2nd Day of Christmas Bert
1998 Safe Men Frank
54 Ricko
1999 Ride with the Devil Alf Bowden
2000 You Can Count on Me Terry Prescott
Committed T-Bo
The Beat Zane Marinelli
2001 The Last Castle Yates
2002 XX/XY Coles
Windtalkers Private Pappas
2003 My Life Without Me Lee
View from the Top Ted Stewart
In the Cut Detective Giovanni A. Malloy
2004 We Don't Live Here Anymore Jack Linden
Eternal Sunshine of the Spotless Mind Stan
13 Going on 30 Matt Flamhaff
Collateral Fanning
2005 Just Like Heaven David Abbott
Rumor Has It... Jeff Daly
2006 All the King's Men Adam Stanton
2007 Zodiac Inspector Dave Toschi
Reservation Road Dwight Arno
2008 Blindness Doctor
What Doesn't Kill You Brian Reilly
2009 The Brothers Bloom Stephen
Where the Wild Things Are Connie's Boyfriend
Sympathy for Delicious Joe
2010 Shutter Island Chuck Aule/ Dr. Sheehan
Date Night Brad Sullivan
The Kids Are All Right Paul
2011 Margaret Maretti Berstone
2012 The Avengers Bruce Banner / The Hulk
Thanks For Sharing Adam
2013 Now You See Me Dylan
Red Light Winter Matt
Can A Song Save Your Life?
2014 The Normal Heart Ned Weeks