Born to privilege in New York City, Wallace was the son of renowned editor William Shawn of The New Yorker fame. He was educated at both Harvard University, where he studied history, and Magdalen College, Oxford. Wallace initially taught English in India on a Fulbright scholarship, and then English, Latin and drama back in New York. However, a keen interest in writing and acting compelled him to leave his position and pursue a stage career as both playwright and actor.
Known For
Credits
Cast Credits
Evil (2019)
Guest starring as Father Frank Ignatius
(2 episodes)
- Episode 3x10: The Demon of the End (Aug 14, 2022)
- Episode 3x01: The Demon of Death (Jun 12, 2022)
Bug Diaries (2019)
Guest starring as Grampa Spider
(4 episodes)
- Episode 3x01: Halloween Bug-A-Boo! (Oct 2, 2020)
- Episode 2x04: Spider's Tire Trouble (Jan 3, 2020)
- Episode 1x04: Worm's New Digs (Apr 12, 2019)
- Episode 1x03: Fly's Picnic Problem (Apr 12, 2019)
Summer Camp Island (2018)
Starring as Pete
- Episode 4x08: Tomorrow's Bananas (Jun 17, 2021)
Starring as Morris Mole
- Episode 2x03: Molar Moles (Jun 18, 2020)
Starring as Barry
- Episode 2x16: When Harry Met Barry (Jun 18, 2020)
Young Sheldon (2017)
Guest starring as Dr. John Sturgis
(51 episodes)
- Episode 7x09: A Fancy Article and a Scholarship for a Baby (Apr 25, 2024)
- Episode 6x20: German for Beginners and a Crazy Old Man with a Bat (May 11, 2023)
- Episode 6x19: A New Weather Girl and a Stay-at-Home Coddler (May 4, 2023)
- Episode 6x18: Little Green Men and a Fella's Marriage Proposal (Apr 27, 2023)
- Episode 6x15: Teen Angst and a Smart-Boy Walk of Shame (Mar 9, 2023)
- Episode 6x11: Ruthless, Toothless and a Week of Bed Rest (Feb 2, 2023)
- Episode 6x09: College Dropouts and the Medford Miracle (Jan 5, 2023)
- Episode 6x04: Blonde Ambition and the Concept of Zero (Oct 20, 2022)
- Episode 6x03: Passion's Harvest and a Sheldocracy (Oct 13, 2022)
- Episode 5x18: Babies, Lies and a Resplendent Cannoli (Apr 14, 2022)
- Episode 5x15: A Lobster, an Armadillo and a Way Bigger Number (Mar 3, 2022)
- Episode 5x14: A Free Scratcher and Feminine Wiles (Feb 24, 2022)
- Episode 5x10: An Expensive Glitch and a Goof-Off Room (Jan 6, 2022)
- Episode 5x06: Money Laundering and a Cascade of Hormones (Nov 11, 2021)
- Episode 5x05: Stuffed Animals and A Sweet Southern Syzygy (Nov 4, 2021)
- Episode 5x03: Potential Energy and Hooch on a Park Bench (Oct 21, 2021)
- Episode 5x01: One Bad Night and Chaos of Selfish Desires (Oct 7, 2021)
- Episode 4x17: A Black Hole (May 6, 2021)
- Episode 4x16: A Second Prodigy and the Hottest Tips for Pouty Lips (Apr 29, 2021)
- Episode 4x13: The Geezer Bus and a New Model for Education (Apr 8, 2021)
- Episode 4x12: A Box of Treasure and the Meemaw of Science (Apr 1, 2021)
- Episode 4x08: An Existential Crisis and a Bear That Makes Bubbles (Feb 18, 2021)
- Episode 4x06: Freshman Orientation and the Inventor of the Zipper (Jan 21, 2021)
- Episode 3x21: A Secret Letter and a Lowly Disc of Processed Meat (Apr 30, 2020)
- Episode 3x20: A Baby Tooth and the Egyptian God of Knowledge (Apr 16, 2020)
- Episode 3x17: An Academic Crime and a More Romantic Taco Bell (Mar 5, 2020)
- Episode 3x16: Pasadena (Feb 20, 2020)
- Episode 3x15: A Boyfriend's Ex-Wife and a Good Luck Head Rub (Feb 13, 2020)
- Episode 3x13: Contracts, Rules and a Little Bit of Pig Brains (Jan 30, 2020)
- Episode 3x12: Body Glitter and a Mall Safety Kit (Jan 16, 2020)
- Episode 3x10: Teenager Soup and a Little Ball of Fib (Dec 12, 2019)
- Episode 3x09: A Party Invitation, Football Grapes and an Earth Chicken (Dec 5, 2019)
- Episode 3x08: The Sin of Greed and a Chimichanga from Chi-chi's (Nov 21, 2019)
- Episode 3x07: Pongo Pygmaeus and a Culture that Encourages Spitting (Nov 14, 2019)
- Episode 3x06: A Parasol and a Hell of an Arm (Nov 7, 2019)
- Episode 3x05: A Pineapple and the Bosom of Male Friendship (Oct 24, 2019)
- Episode 2x22: A Swedish Science Thing and the Equation for Toast (May 16, 2019)
- Episode 2x21: A Broken Heart and a Crock Monster (May 9, 2019)
- Episode 2x20: A Proposal and a Popsicle Stick Cross (May 2, 2019)
- Episode 2x19: A Political Campaign and a Candy Land Cheater (Apr 25, 2019)
- Episode 2x18: A Perfect Score and a Bunsen Burner Marshmallow (Apr 4, 2019)
- Episode 2x15: A Math Emergency and Perky Palms (Feb 7, 2019)
- Episode 2x13: A Nuclear Reactor and a Boy Called Lovey (Jan 17, 2019)
- Episode 2x10: A Stunted Childhood and a Can of Fancy Mixed Nuts (Dec 6, 2018)
- Episode 2x09: Family Dynamics and a Red Fiero (Nov 15, 2018)
- Episode 2x07: Carbon Dating and a Stuffed Raccoon (Nov 1, 2018)
- Episode 2x05: A Research Study and Czechoslovakian Wedding Pastries (Oct 18, 2018)
- Episode 2x02: A Rival Prodigy and Sir Isaac Neutron (Sep 27, 2018)
- Episode 1x22: Vanilla Ice Cream, Gentleman Callers, and a Dinette Set (May 10, 2018)
- Episode 1x21: Summer Sausage, a Pocket Poncho, and Tony Danza (May 3, 2018)
- Episode 1x19: Gluons, Guacamole, and the Color Purple (Apr 19, 2018)
The Marvelous Mrs. Maisel (2017)
Guest starring as Herb Smith
(2 episodes)
- Episode 3x03: Panty Pose (Dec 6, 2019)
- Episode 1x05: Doink (Nov 29, 2017)
The Good Fight (2017)
Guest starring as Charles Lester
(5 episodes)
- Episode 6x03: The End of Football (Sep 22, 2022)
- Episode 6x01: The Beginning of the End (Sep 8, 2022)
- Episode 5x04: And the clerk had a firm... (Jul 15, 2021)
- Episode 5x02: Once there was a court... (Jul 1, 2021)
- Episode 2x10: Day 471 (May 6, 2018)
Search Party (2016)
Guest starring as William Badpastor
(2 episodes)
- Episode 3x09: Irrefutable Evidence (Jun 25, 2020)
- Episode 3x08: A Dangerous Union (Jun 25, 2020)
Graves (2016)
Guest starring as Sen. Jerry North
(3 episodes)
- Episode 2x07: All the King's Horses (Nov 26, 2017)
- Episode 2x05: Delights of My Suffering (Nov 12, 2017)
- Episode 2x03: The Opposite of People (Oct 29, 2017)
Life in Pieces (2015)
Guest starring as Samuel
- Episode 2x03: Eyebrow Anonymous Trapped Gem (Nov 10, 2016)
The Stinky & Dirty Show (2015)
Guest starring as Tall
(12 episodes)
- Episode 2x10: Love Notes / Love Is in the Air (Feb 12, 2018)
- Episode 2x09: Going Nowhere Fast / The Missing Stink (Nov 23, 2017)
- Episode 2x08: Screen Clean / Drive-In Movers (Nov 23, 2017)
- Episode 2x06: Ha Ha Higher / The Waiting Games (Nov 23, 2017)
- Episode 2x05: Red Light, Red Light / Missing Pieces (Nov 23, 2017)
- Episode 2x04: Silent But Stinky / Make Way for Sweepy (Nov 23, 2017)
- Episode 2x03: Tree Amigos / Tower Topper (Nov 23, 2017)
- Episode 1x10: Detour / Heat & Ice (Sep 2, 2016)
- Episode 1x07: Lost! / Squeak (Sep 2, 2016)
- Episode 1x04: Running on Empty / Rolling Blunder (Sep 2, 2016)
- Episode 1x03: Can You Dig It? / Dirty, The Garbage Truck (Sep 2, 2016)
- Episode 1x02: Mighty Night / Water Ways (Jul 5, 2016)
The 7D (2014)
Guest starring as Not-So-Magic Mirror
- Episode 1x03: Mirror, Mirror | The Big Bash (Jul 9, 2014)
Mozart in the Jungle (2014)
Guest starring as Winslow
(5 episodes)
- Episode 3x08: Circles Within Circles (Dec 9, 2016)
- Episode 3x05: Now I Will Sing (Dec 9, 2016)
- Episode 3x04: Avventura Romantica (Dec 9, 2016)
- Episode 2x02: Nothing Resonates Like Rhinoceros Foreskin (Dec 30, 2015)
- Episode 1x08: Mozart with the Bacon (Dec 23, 2014)
Bubble Guppies (2011)
Guest starring as Professor Puny
- Episode 6x21: Search for the Great Gorilla! (Oct 13, 2022) [Special Guest Star]
The Good Wife (2009)
Guest starring as Charles Lester
(3 episodes)
- Episode 6x22: Wanna Partner? (May 10, 2015)
- Episode 5x13: Parallel Construction, Bitches (Mar 9, 2014)
- Episode 4x16: Runnin' with the Devil (Mar 10, 2013)
Gossip Girl (2007)
Guest starring as Cyrus Rose
(7 episodes)
- Episode 3x22: Last Tango, Then Paris (May 17, 2010)
- Episode 3x18: The Unblairable Lightness of Being (Apr 12, 2010)
- Episode 2x25: The Goodbye Gossip Girl (May 18, 2009)
- Episode 2x21: Seder Anything (Apr 20, 2009)
- Episode 2x13: O Brother, Where Bart Thou? (Dec 8, 2008)
- Episode 2x11: The Magnificent Archibalds (Nov 17, 2008)
- Episode 2x10: Bonfire of the Vanity (Nov 10, 2008)
Damages (2007)
Guest starring as Sterling Biddle
- Episode 3x06: Don't Forget to Thank Mr. Zedeck (Mar 1, 2010)
Eureka (2006)
Guest starring as Dr. Warren Hughes
(3 episodes)
- Episode 5x05: Jack of All Trades (May 14, 2012)
- Episode 4x18: This One Time at Space Camp… (Aug 29, 2011)
- Episode 4x17: Clash of the Titans (Aug 22, 2011)
Fat Actress (2005)
Guest starring as Dr. Sigmund Von Oy
- Episode 1x04: The Koi Effect (Mar 28, 2005) [Special Guest Star]
Desperate Housewives (2004)
Guest starring as Lonny Moon
- Episode 2x05: They Asked Me Why I Believe In You (Oct 23, 2005)
Law & Order: Criminal Intent (2001)
Guest starring as Film Professor
- Episode 6x10: Weeping Willow (Nov 28, 2006)
Crossing Jordan (2001)
Guest starring as Dr. Howard Stiles
(8 episodes)
- Episode 5x14: Death Toll (Mar 12, 2006)
- Episode 4x03: Intruded (Oct 10, 2004)
- Episode 2x18: Fire and Ice (Apr 7, 2003)
- Episode 2x17: Cruel and Unusual (Mar 31, 2003)
- Episode 2x07: Scared Straight (Nov 18, 2002)
- Episode 1x23: Secrets & Lies: Part II (May 13, 2002)
- Episode 1x17: Crime & Punishment (Mar 4, 2002)
- Episode 1x07: Sight Unseen (Nov 12, 2001)
Law & Order: Special Victims Unit (1999)
Guest starring as Professor Roy Batters
- Episode 10x13: Snatched (Feb 3, 2009) [Special Guest Star]
Guest starring as Benjamin Edelman
- Episode 20x10: Alta Kockers (Nov 29, 2018) [Special Guest Star]
Family Guy (1999)
Guest starring as Bertram
(3 episodes)
- Episode 9x16: The Big Bang Theory (May 8, 2011)
- Episode 4x22: Sibling Rivalry (Mar 26, 2006)
- Episode 3x11: Emission Impossible (Nov 8, 2001)
King of the Hill (1997)
Guest starring as Philip Ny
- Episode 2x01: How to Fire a Rifle Without Really Trying (Sep 21, 1997)
The Pink Panther (1993)
Starring as Sundry characters
- Episode 1x36: Wiener Takes All / The Easter Panther (May 14, 1994)
Star Trek: Deep Space Nine (1993)
Guest starring as Grand Nagus Zek
(7 episodes)
- Episode 7x24: The Dogs of War (May 26, 1999) [Special Guest Star]
- Episode 7x12: The Emperor's New Cloak (Feb 3, 1999) [Special Guest Star]
- Episode 6x23: Profit and Lace (May 13, 1998) [Special Guest Star]
- Episode 5x20: Ferengi Love Songs (Apr 21, 1997)
- Episode 3x16: Prophet Motive (Feb 26, 1995)
- Episode 2x07: Rules of Acquisition (Nov 7, 1993)
- Episode 1x11: The Nagus (Mar 21, 1993)
Civil Wars (1991)
Guest starring as Riley Baker
- Episode 2x08: A Bus Named Desire (Dec 2, 1992) [Special Guest Star]
The Simpsons (1989)
Guest starring as Wallace the Hernia
- Episode 30x16: I Want You (She's So Heavy) (Mar 10, 2019) [Special Guest Star]