Tim's Father is the unnamed father of Tim. Although he isn't given a name, he appears in some BrainPOP episodes. He is seen with Tim in some episodes, and, by the events of the episode 'Voting', it can be safely said it is his father. He has spoken in two episodes, none of which he appeared in. In the Immigration episode, it is revealed that he is of Welsh descent. He is voiced by Phil LaMarr.
- Airport Security
- Guns (unseen, mentioned only)
- Potential Energy (unseen, but speaks)
- Tropical Rainforests (unseen, but speaks)
- Yo-Yo Ma