LEGO Star Wars: The Video Game/Characters

There are several different types of playable characters in Lego Star Wars - Jedis/Siths, who use a lightsaber and the Force; characters with blasters, who use blasters and can grapple in certain areas; (marked with red circles) and droids, who won't be attacked by enemies. Astromech and protocol droids can open certain doors.

Jedi
The Jedi Knights wield lightsabers and use the Force. Also, unlike most characters, they can double-jump.

Anakin Skywalker
For Anakin Skywalker as a Sith, see Darth Vader.

Yoda
Being a Jedi, Yoda can use the Force and a lightsaber. However, he walks very slowly, but has a fast hoverchair. To use it, don't equip your lightsaber, and jump. Or you can use a lightsaber, he'll jump around instead of walking. The slightest tap of the control stick while your lightsaber is equipped will make Yoda jump. However, you still have full control of your movement, (except vertically) as you can control your jumps.

Sith
Like the Jedi, Siths use the Force and a lightsaber.

Darth Maul
Being a Sith, Maul wields a red lightsaber and the Force. However, unlike most Jedi and Sith, his lightsaber is double-ended.

Droids
Droids are machine characters. If you use certain droids, you won't be attacked. Others - protocol droids and astromech droids, can open certain doors. Astromech droids can hover for short periods of time.

C-3PO
C-3PO is a protocol droid.

R2-D2
R2-D2 is an astromech droid.

R4-P17
R4-P17 is an astromech droid.

TC-14
TC-14 is a protocol droid.

Other
This category includes other characters that don't fit in any of the above categories. These include blaster characters, who can shoot or use a grappling hook in certain spots.

Queen Amidala
Queen Amidala is unlocked in Chapter I-3. She has a blaster.

Jar Jar Binks
Jar Jar Binks, introduced in Chapter I-2, can jump very high. As a result, he can reach places most other characters can't reach.

Captain Panaka
Captain Panaka is unlocked in Chapter I-3. He wields a blaster. More information at: Wookieepedia.