Mr. Peabody and Sherman Characters Explained: Full List, Voice Cast, and Historical Cameos
By Sarah Jenkins
The secondary cast transforms the film into a madcap parade of real-world figures who refuse to behave like their textbook portraits. Stanley Tucci plays Leonardo da Vinci with energetic frustration, depicting the Renaissance master as an overworked tinkerer struggling to coax a genuine smile out of the stubborn Mona Lisa (voiced by Lake Bell). Meanwhile, Patrick Warburton steals every scene he enters as the boisterous, muscle-bound King Agamemnon inside the Trojan Horse, treating Sherman as a warrior brother-in-arms with booming, hyper-macho enthusiasm.
| Character | Voice Actor | Era / Role in Narrative | Key Character Dynamic |
|---|---|---|---|
| Mr. Peabody | Ty Burrell | Present Day (Genius Canine) | Overprotective adoptive father attempting to control chaos with sheer intellect. |
| Sherman | Max Charles | Present Day (Schoolboy) | Eager, awkward son fighting to establish his autonomy without disappointing Peabody. |
| Penny Peterson | Ariel Winter | Present Day (Classmate) | Challenger turned reluctant ally whose vanity sets historical crises in motion. |
| Ms. Grunion | Allison Janney | Present Day (Child Services) | Rigid institutional villain driven by pure prejudice against an animal parent. |
| Leonardo da Vinci | Stanley Tucci | Renaissance Florence (1503) | Peabody’s intellectual contemporary who sympathizes with his parental headaches. |
| King Agamemnon | Patrick Warburton | Ancient Troy (c. 1184 BCE) | Hyper-masculine Mycenaean king who treats Sherman like an elite, bloodthirsty soldier. |
| King Tut | Zach Callison | Ancient Egypt (c. 1332 BCE) | Entitled, impulsive boy-pharaoh who immediately demands Penny as his royal bride. |
| Marie Antoinette | Lauri Fraser | French Revolution (1789) | Cake-obsessed aristocrat completely oblivious to the peasant uprising outside. |
Additional historical cameos broaden the film's time-travel sandbox. Zach Callison voices King Tut as a bratty adolescent monarch whose decree that Penny must be mummified upon his death forces a frantic escape through a tomb maze. During the 1789 French Revolution sequence, Lauri Fraser gives Marie Antoinette a shrill, pastry-fueled mania, while Guillaume Aretos provides the short-tempered military vanity of Maximilien Robespierre. Even minor figures, like Dennis Haysbert's brief turn as an ancient Egyptian judge, build out a living, historically dense backdrop.
Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.
