The code which handles an actor is chosen by bits 0-5 of its ID (byte 00 of the actor). The ID is also used to choose the sprite (see SpritesTable).

IDs	Actor	Handler
00 0C 17	Empty slot (0C is hatless Charlie)	LimitFrameRate
01-02	Charlie	GamePlayEntry
03	Flour shot	HandleFlourShot
04-05	Custard	HandleCustard
06-07	Level introduction	HandleLevelIntroduction
08-09	Sugar	HandleSugar
0A-0B	Level timer	HandleLevelTimer
0D	Charlie's hat	HandleHat
0E	Falling Charlie	HandleFallingCharlie
0F	Cleared actor	HandleClearedActor
10-11	Chocolate	HandleChocolate
12-13	Cheese	HandleCheese
14-15	Peel	HandlePeel
16	Sound effect (notes)	Handler_Notes
18	End of life	HandleEndOfLife
19	Sound effect (sweep)	Handler_RisingSweep
1A-1D	Pike and tin can	HandlePikeAndTinCan
1E-23	Tack, washer and bolt	HandleTackWasherBolt
24-25	Monster	HandleMonster
26-27	Explosion	HandleExplosion
28-2A	Batter	HandleBatter
2B	Batter	HandleBatter_Final
2C-30	Cake	HandleCake