Happy Birthday Sir Topham Hatt!" is a Season 3 Thomas the Tank Engine & Friends home video. It was originally released in August 28, 1993.
Thomas, Barney and their friends are celebrating Sir Topham Hatt's Birthday.
- Donald & Douglas
- Barney the Purple Dinosaur
- Baby Bop the Green Dinosaur
- BJ the Yellow Dinosaur
- Pip & Emma
- Annie & Clarebel
- Sir Topham Hatt
- UK Narrator: Michael Angelis
- US Narrators: Ringo Starr/George Carlin
- Barney has his Season 3 voice and Late 1993/1994-1997 costume.
- Baby Bop has her Season 1 voice and 1991-1993 costume.
- BJ has his Season 2 voice and 1990-1993 costume.
- The Barney costume used in this home video was also seen in "Barney Live! In New York City!".
- The Season 3 Barney & Friends Musical Arrangement used in this home video was also heard in "Barney's Talent Show".
- Last episode to use the Season 3 Thomas & Friends set.