collectors

Nature & Wildlife

Plants, birds, bugs, fossils & finds.

Music & Records

Wax, tape, picks & posters.

Toys & Figures

Plastic legends, plush pals & studs.

Books, Comics, Manga & Games

Stories you keep on the shelf.

Collectibles

Pocket-sized obsessions.

21 categories · 14,278 catalogued by usersAll categories Collect something we’ve never heard of? Make your own category and start tracking, today
LEGO Sets

Johnny Thunder and Baby T

other • 23 pcs

Set number
5903-1
Availability
Retired
Pieces
23
Released
2000
Theme
Other
Minifigures
1
Barcode
5702012006128
23,406sets in the catalog
0copies listed for sale
Buy

Where to find one

Search for Johnny Thunder and Baby T on the marketplaces collectors use.

Listings from external marketplaces. We may earn a commission on qualifying purchases.

Provenance

Where it came from

Released in 1999 as part of the Lego Adventurers theme, specifically under the Dino Island subtheme, Johnny Thunder and Baby T (set 5903-1) was designed as a small promotional set. It features the iconic explorer Johnny Thunder alongside a small, molded dinosaur figure, reflecting the narrative expansion of the Adventurers line from desert and jungle expeditions to the discovery of prehistoric creatures on a mysterious, uncharted island.

The set was conceived by the Lego design team to capitalize on the enduring popularity of Johnny Thunder, a character introduced in 1998 who served as a primary protagonist for the theme. The design emphasizes playability within a compact footprint, mirroring the aesthetic of other polybag-style sets from the late nineties that allowed children to collect core characters without the investment of larger, more complex building sets.

Written by Pi, the helpful collecto.rs AI

Collectors

Who's collecting this

Real LEGO sets collectors on collecto.rs who have this in their public collection.

Nobody public has added this set yet — be the first.
About

About Johnny Thunder and Baby T

Johnny Thunder and Baby T is a set in the LEGO Sets catalog on collecto.rs. Other • 23 pcs. Catalog data is sourced from Brickset. No collectors on collecto.rs publicly track this set yet — adding yours would make you the first.

How many collectors track Johnny Thunder and Baby T on collecto.rs?

Johnny Thunder and Baby T doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.

Can I track my own copy of Johnny Thunder and Baby T?

Yes. collecto.rs is free — sign up to log your set, upload photos, record condition, edition, and acquisition cost, and connect with other LEGO sets collectors. Your collection stays private by default.

Where does the Johnny Thunder and Baby T catalog entry come from?

The catalog entry for Johnny Thunder and Baby T is sourced from Brickset. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.

Is tracking LEGO sets free on collecto.rs?

Yes. Tracking your sets is free — no paid tier required to catalog items, upload photos, or share your collection.

Track every set you own

Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.

Sign up free