Filmography19 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2023 | iHeartRadio Jingle Ball 2023Movie | Self | 33 |
| 2022 | Big Time Rush: The City Is Ours - Live at Madison Square GardenMovie | Self | 32 |
| 2017 | Are You There God? It's Me MargotSeries | Ryan | 27 |
| 2012 | Marvin MarvinSeries | Kendall Knight | 22 |
| 2009 | Big Time RushSeries | Kendall Knight | 19 |
| 2008 | The Penguins of MadagascarSeries | Kendall (voice) | 18 |
| 2005 | Ghost WhispererSeries | Jeff | 15 |
| 2005 | Hell's KitchenSeries | Self - Restaurant Patron | 15 |
| 2004 | Phil of the FutureSeries | Jake (uncredited) | 14 |
| 2003 | The Ellen DeGeneres ShowSeries | Self - Musical Guest | 13 |
| 2002 | Without a TraceSeries | Shay Hanson | 12 |
| 2002 | CSI: MiamiSeries | Dominic Abeyta | 12 |
| 2001 | Raising DadSeries | Noah | 11 |
| 2000 | Gilmore GirlsSeries | Peter | 10 |
| 1999 | Teen Choice AwardsSeries | Self | 9 |
| 1997 | Figure It OutSeries | Self | 7 |
| 1994 | ERSeries | Damian | 4 |
| 1993 | FrasierSeries | Young Frasier | 3 |
| 0 | Untitled Big Time Rush FilmMovie | Kendall Knight | — |